The history of the Italian aircraft carriers is one of delayed decisions and postponed opportunities, confrontations, more or less transparent, between the Marina and the Aeronautica, and project after project, none of which was ever realized until the introduction of the Giuseppe Garibaldi in 1985.

World War I and the Birth of the Regia Aeronautica

The first Italian vessel classifiable in any possible way as an aircraft carrier had already entered service during World War I. This was the hydroplane tender Europa, which was the result of the conversion of the merchant ship Quarto, acquired from a German ship owner in 1915, and designed to provide a greater range for reconnaissance and a higher speed than naval units. The alterations to this ship consisted of two hangers built on the bow and stern capable of hosting 8 seaplanes. The ship was not equipped with any machinery capable of launching the planes, which therefore had to be lowered into the water before they could take off. The official classification for this ship was “hydroplanes and submarines support ship”.

The experience of World War I, however, did not convince the higher ranks of the Regia Marina of the usefulness and convenience of inserting one or more aircraft carriers in the order of battle. Several factors influenced this situation, which would drag on until World War II:

The Italian war experience, from a naval viewpoint, was substantially limited to the Adriatic Sea with its short distances, which did not create the need for naval units such as the aircraft carrier.
The institution, in 1922, of the Regia Aeronautica as an independent armed force under the auspices of the fascist Regime, which surely did not assist in any way the process, especially after a rivalry between the two branches became, over time, quite fierce. The Regime’s support for the Aeronautica influenced the process quite heavily, thus eliminating much needed deep and productive collaboration.
The substantial opposition, manifested by the Regime, against the construction of aircraft carriers, despite the many studies and projects (as we will later see), due to the support clearly shown for the Aeronautica, the most “fascist” of all armed forces, to the detriment of the Regia Marina. Also, another consideration was the geographical conformation of Italy, which, it was said, was a natural aircraft carrier stretched out into the Mediterranean thus making the construction of carriers useless.
This last point deserves some further clarification because, under certain conditions, it could have been accepted. The geographical position of the Italian peninsula is effectively very centrally located within the Mediterranean, thus allowing the control of this sea and, if necessary, its separation into two isolated halves. This would have been possible thanks to airports in Sicily and Sardinia which could easily control the areas adjacent to the Western Mediterranean and the access to the Sicilian Channel which is the narrowing which divides the two halves. A similar case could have been made for the eastern part of the Mediterranean, which could be controlled from airports in the Apulie region, and partially from Sicily. If one also considers the Italian control over the Aegean Sea from the Dodecannes island, one might realized that the whole theory was not too far fetched, at least from a geographical viewpoint.

Rota’s project in 1925

Naturally, an argument so presented is only half of one. In fact, to implement what was just said, there are several prerequisites which had to be met and which, as we shall see, were far from being so at the beginning of the hostilities. Foremost, it was necessary to have airplanes with technical specifications commensurate to the requirements for operations at sea. These are long range reconnaissance missions, including scouting and anti-submarine patrol in addition to “classic” attacks against naval targets.

These requirements, in essence, called for the construction of bombers, torpedo bombers, long range reconnaissance planes, and hydroplanes with adequate endurance and defensive armament. It also required fighter planes capable of long escort missions at sea. In essence, it was necessary to build a series of new planes whose foremost characteristic should have been endurance thus allowing for the greatest possible range of action. Instead, the best planes available at the moment were to be utilized, and this does not mean that the aircraft in question were of lesser quality; one only has to see the results obtained by converting the SM-79 to a torpedo bomber.

Another indispensable prerequisite was the creation of an inter-force command center between the Regia Marina and the Regia Aeronautica which would allow, through the implementation of operational procedure and a similar communication system, the expeditious transfer of information and orders thus eliminating delays between the request from the Commander at Sea and the arrival of the air forces sent in his support. This would have allowed the intervention of the air force, within the limits dictated by distance between the fleet and the air bases, in an efficient and timely manner each time a request was generated by the fleet.

Even this aspect was completely neglected. Anything capable of flying was under the direct control of the Regia Aeronautica with the only exception of the hydroplanes INAM Ro-43 aboard battleships and cruisers whose crews were anyway mixed, with the pilot belonging the Aeronautica and the Navigator to the Marina. Naturally, these small single engine byplanes, slow and almost without any armament and with limited endurance were only used for strategic reconnaissance and could not be a substitute for a well trained and coordinated naval aviation unless one or more carriers had been introduced. The consequences were clearly seen at the battle of Punta Stilo, where about one hundred bombers sent to the battle arrived late. Some of them even attacked the Italian ships, mistake this probably justified by the intense anti aircraft barrage generated by the fleet and which, thankfully, did not have any positive effect.

In conclusion, the few squadrons placed here and there, should have been instead a much more robust air force, probably with a few hundreds planes of various kind strategically placed in different sectors but with forces sufficient for a massive deployment. Ultimately, none of this was ever accomplished: the Regia Marina had to operate without aircraft carriers and without an air force trained and available. During the conflict, the occasions in which collaboration between the Regia Marina and the Regia Aeronautica worked decently could be counted on a single hand. Let us go back to the aircraft carries:

The Projects

Notwithstanding the evident opposition of the regime to the construction of aircraft carriers, the Regia Marina dedicated resources in support of studies and projects for the entire period preceding the conflict. Specifically, three projects from this period deserve mentioning for the thoroughness of the studies conducted. These projects were presented in 1925, 1928 and 1932 with the last one reintroduced in 1936 after a few variances.

In reality, even since 1921, Lieutenant G. Fioravanzo had presented a project for an hybrid called “antiaircraft cruiser” which was born of the idea of merging on a single naval platform antiaircraft guns and a group of fighter planes. This ship, similar in dimension to the British Hermes, was to displace 10,000 tons and produce a speed of 30 knots while armed with 18 102mm guns of 16 120mm ones. The fighter group was to be composed of 16 fighter planes.

The first project, dating back to 1925, presented a hybrid of about 12,500 tons, half carrier and half cruiser. The landing deck was to be of full length, still leaving enough space at the two extremities for two quadruple 203mm turrets to be used against other ships. These would be complemented by 6 100mm installed on island to the side of the deck and two six-gun 40mm place on the bow and stern. The stern was configured like a slide, thus allowing the deployment and retrieval of reconnaissance hydroplanes of which the ship was to be equipped. In the middle of the landing deck were to be placed the fire control towers along with the three funnels and the mast. These apparatuses were retractable, thus allowing for the entire landing deck to be used for flight operations. The funnels, while retracted, was to discharge through a lateral opening.

In 1928, the same project was updated increasing the displacement to 15,000 tons (thus allowing for a better utilization of the 60,000 tons allotted to Italy by the conference of Washington) and with speed similar to the larger units (battleships and cruisers) then in use. Armament was to be composed by 6 dual 152mm guns and 8 dual 100 mm ones for antiaircraft defense. For armor, the horizontal protection was to be similar to the Trento class, while for the vertical it was planned to have reinforced plates protecting the vital parts of the ship (engines, ammunition depots and gasoline). The air wing was planned at 40 aircraft: 18 fighters, 12 reconnaissance planes and 6 to 12 attack planes. But, as a document from the time says, “the need for this type of ship has not yet been recognized by His Excellency the Minister…”.

The 1932 project called for unit much more conventional of about 15 to 16,000 tons with a full flight deck and an “island” to starboard more toward the bow. Armament, much more adapted for a carrier, was to be constituted by 4 152mm guns and 7 102mm ones and a wing of about 40 to 45 planes. The 1936 project represented and improvement over the preceding one, with displacement around 15,000 tons and armament constituted by three triple 152mm guns in front and behind the “island” and with a large number of anti-aircraft 90mm guns. The wing was to be constituted by 42 planes: 24 fighters and 18 diving bombers-reconnaissance deployable my means of two or three catapults. Armor was to be light, only 60 mm near the most vital parts near the center of the ship and possible near the bow. There was not to be any horizontal protection, impossible to implement which such limiting displacement.

Instead, the ship was to be equipped with underwater protection made out of multiple bulkheads 3 meters apart and creating a second hull, which should have been untouched by eventual damages. The engine was to produces a very high 160,000 HP generating a maximum speed of 38 knots (!). Speed this that was thought necessary for the ship to be effective. However, many noted that if the required speed had bee reasonably kept to 32 knows, the HP requirement would have been cut in half. Hsis would have created less stress on the engine itself, leaving more room for the aeronautical infrastructures, such has hangars, shops, ammo and fuel depot ultimately increasing the operational life of the vessel.

Furthermore, it would have been possible to utilize a diesel engine with the well-known advantages in terms of fuel consumption, reliability and longevity. Regardless, despite the blooming of projects and the favorable opinions expressed by high ranking officers of the Regia Marina, none of these projects ever materialized and the Regia Marina found itself on June 10th, 1940 without an aircraft carrier and, as a matter of fact, without naval aviation.

The war, Matapan and the Aquila

Under these circumstances, all problems came immediately to the surface and, already during the Action of Calabria, it was understood the significance of requesting assistance from land-based wings without any established procedure in regards to shared command and control. If this had not been enough, the Battle of Gavdo and Matapan took care of clearing out, one and for all, any doubt about the usefulness of the aircraft carrier as part of a battle group.

The destruction of three heavy cruisers and their escort by the Mediterranean Fleet was possible thanks to the presence of the radar on the British units. Also instrumental was the timely and meticulous British reconnaissance which kept Admiral Cunnigham always informed of the position and situation of the Italian fleet. Furthermore, the presence of the Formidable allowed for the deployment of a group of torpedo bombers, which, the night of the 28th of March, was able to immobilize the Pola with all the terrible consequences which followed.

The liner Roma

After that terrible day, there was not any hesitation: the Regia Marina had to have an aircraft carrier. In July, the order was given for the conversion of the liner Roma to an aircraft carrier. This liner was chosen in virtues of several factors, which made it a better candidate that other ships. First of all, it was not too old (it was about 15 year old) but still it needed work to remain competitive in its arena, so the ship owner would not create too many difficulties in giving up the vessel. Second, most of the internal structure needed upgrading and it was therefor convenient to do it as part of the transformation. Also, the engine was not any longer adequate and needed work. The hull, on the other hand, was strong and spacious and would have allowed for the installation of the necessary infrastructures required by a carrier.

The Acquila

The transformation work began immediately. The underwater part of the hull was modified with the installation of saddle-tanks to minimize the wake and allow for a better flow of the water around the hull, which was widened about 5 meters. The internal compartments were completely reorganized to allow for the installation for the hangar capable of hosting 30 to 40 planes, and the necessary shops and support systems.

The original four Parsons turbines, capable of 21.5 knots, were completely replaced. Instead were installed four turbines originally planned for the light cruisers “Capitani Romani” class made available by the cancellation of 4 of the original 12 vessels. Each turbine was capable of 50,000 HP, but on this installation they were limited to 37,500, also replaced were the propellers which were designed for this larger, but slower ship.

The superstructure consisted in a multi-desk fore-bridge placed amidships on the starboard, followed by a large funnel to which were directed the exhaust from the boilers. The flight deck was continuos, from bow to stern, and obviously integral part of the hull, but was held by special structures. To the side of the deck were several ledges holding both the ship’s armament and some of the equipment.

Armament was mostly designed for antiaircraft defense and included 8 135/45 guns and 12 65/64 on single mounts placed on the ledges to the side of the deck. Also, defense included 132 20/65 machine guns in 22 sextuple mounting distributed to the sides of the deck and in front and back of the island. As on can see, the armament was quite respectable and surely adequate.

The air wing consisted of 51 aircraft. The type selected (it had been decided not to develop a plane specifically for this use due to the long development times) was the fighter Reggiane RE-2001. It was a single engine single-seater, which had entered service in 1941 and was powered by a 1,175 HP Daimler Benz (build under license by Alfa Romeo) and capable of a maximum speed of 540 Km/h. Armament consisted of two 12.7 mm and two 7.7 mm guns. Also, the plane had a centrally mounted hook for the installation of a bomb (for the utilization of the plane as a bomber). The version embarked had a substantially modified undercarriage, strengthen for the deck landing and also was equipped with stopping hook. The installation of the 51 planes was a classic example of Italian ingenuity since the hangars could only host 36 planes (respectively 26 and 10), the remaining planes were literally hang from the ceiling thus bringing the total capacity to 51. There was also in the planning the construction of a version of the Re-2001 with folding wings. With this model, the ship would have been able to deploy 66 aircraft.

Re-2001

Protection, obviously, was quite limited and was essentially limited to the vital parts. There was no protection for the flight deck, there was no protective belt, but only a light protection around the rudder. Also, some of the bulkheads were filled with concrete to increase protection.

It was destine, however, that Italy would conclude the war without an aircraft carrier. In September 1943 the Aquila, now almost completed and for sea trials, was caught by the armistice in Genoa and was captured by the Germans. It was later damaged during an allied aerial bombardment on June 16th, 1944 and later sunk by Italian insidious weapons on April 19th, 1945. The relict was later rescued and scuttle after the war.

Aquila was not to be alone. In 1942 it was decided to transform into an aircraft carrier the Roma’s quasi-sister ship Augustus. This transformation was to be very limited. The Sparviero (this was the designated name) was scheduled to be a support carrier similar to the allied ships: continuos flight deck, no island, later exhaust, and armed with 6 152 mm and 4 102 mm guns placed to the side of the deck. The ship was to have a wing of about 20 planes.

The wreck of the Sparviero in Genoa after the war

The engine was to be the original diesel one, capable of 18 knots. Work began in November 1942, but was stopped by the armistice the following year at an earlier stage. Practically, the ship had been “shaven” down to the main deck, but none of the structure had been build. This transformation, like the one before, went up in smoke in the nebulous times of September 8th. The Italian Navy had to wait until 1985 before it could receive its first carrier, almost forty years later, when the cruiser-carrier (or light carrier) Giuseppe Garibaldi entered service.

Final Considerations

The history of the Italian carriers during WW II cannot be completed without some final considerations. It was said that if the Regia Marina had had an aircraft carrier it would have been able to fight the Royal Navy on a plain level and that certain events (see Matapan), would have taken a different turn.

The Acquila at the end of the war

It is opportune to consider a few things. First of all, the number of this fantasy carriers. Considering their cost of this kind of unit, and the shipbuilding capabilities of the Italian industries, it would not be logical to assume that Italy could have had more that one or two units (at the very best three). France, for instance, had only the Béarn plus two more planned. Similarly, it is plausible to assume that these ships would have not been large carriers of the class of the Saratoga or Akagi, but vessel with lesser characteristics as we so in the projects presented between the wars.

With two carriers in service, means that beside some rare exceptions, only one unit would be available while the other is been refitted, worked on or upgraded. Also, considering that these units would have been the primary target of the British forces, it is safe to assume that at least one would have been sunk. So, what could have these few carriers do? Escort the fleet in its rare excursions in pursuit of enemy vessel? Escort convoy to North Africa, thus securing aerial coverage? Both? Antisubmarine patrol? As one can see these are many assignments which two carriers alone cannot accomplish. If they had been with the fleet, maybe at Matapan the three cruisers and the two destroyers would have not been lost. Maybe, the Italian could have destroyed a few British convoys, but the faith on the Italian ones would have not changed.

If the carrier had escorted the convoys, Rommel would have received a greater quantity of supply, but the ultimate faith of the African campaign would have not changed and the fleet would have been left without the assuring eyes of naval aviation. If submarine hunting had been a priority, then it would have been only a fruitless effort not worth the risk of getting a torpedo up the hull.

Ultimately, we are brought to conclude that these two or three carriers which Mussolini’s Italy could have afforded, would have not reasonably changed the course of the events of WW II. Surely, they would have been useful to the naval operations (no doubts here), and could have avoided horrendous episodes (horrendous for the final result, but not for the bravery demonstrated by the Italian sailors), but what would have really served Italy, perhaps more than carriers, would have been a strong naval aviation organized in bases distributed on the national territory and overseas allowing for good coverage of the Mediterranean and a good coordination with the operations of the fleet. This would have allowed an even better utilization of the carriers, thus giving it its maximum value.

Translated from Italian by Cristiano D’Adamo

All vessels utilized by the Regia Marina during the conflict

Vessel	Pen.	Class	Type	Shipyard	Laid Down	Launched	Commissioned	Fate	On
Abastro		Abastro	Minesweeper	Neptun, Rostok
Acciaio	AC	Platino	Submarine – Coastal	Odero-Terni-Orlandi (O.T.O.), Muggiano (La Spezia)	11/21/1940	6/22/1941	10/30/1941	Sunk	7/13/1943
Acquilone	AL	Turbine	Destroyer	Odero-Terni-Orlandi (O.T.O.), Genova-Sestri Ponente	5/18/1925	8/3/1927	12/3/1927	Sunk	7/27/1940
Adua	AD	Adua	Submarine – Coastal	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	2/1/1936	9/13/1936	11/14/1936	Sunk	9/30/1941
Airone	AO	Spica tipo Alcione	Torpedo Boat	Ansaldo, Sestri Levante	10/29/1936	1/23/1938	5/10/1938	Sunk	10/12/1940
Alabarda		Ariete	Torpedo Boat	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	3/24/1943	5/7/1944	11/27/1944	Captured	9/9/1943
Alabastro	AB	Platino	Submarine – Coastal	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	3/14/1941	12/18/1941	5/9/1942	Sunk	9/14/1942
Alagi	AL	Adua	Submarine – Coastal	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	3/19/1936	11/15/1936	3/6/1937	Removed from Service	9/9/1943
Alberico da Barbiano		Condottieri tipo Di Giussano	Cruiser – Light	Ansaldo, Sestri Levante	4/16/1928	8/23/1930	6/9/1931	Sunk	12/13/1941
Alberto da Giussano		Condottieri tipo Di Giussano	Cruiser – Light	Ansaldo, Sestri Levante	3/29/1928	4/27/1930	2/5/1931	Sunk	12/31/1941
Alce	C 23	Gabbiano	Corvette	Odero-Terni-Orlandi (O.T.O.), Livorno	5/27/1942	12/5/1942		Captured	9/9/1943
Alcione	AC	Spica tipo Alcione	Torpedo Boat	Ansaldo, Sestri Levante	10/29/1936	12/23/1937	5/10/1938	Sunk	12/11/1941
Alderaban	AL	Spica tipo Perseo	Torpedo Boat	Ansaldo, Sestri Levante	10/2/1935	6/14/1936	6/12/1936	Sunk	10/24/1941
Alessandro Malaspina	MA	Marconi	Submarine – Oceanic	Odero-Terni-Orlandi (O.T.O.), Muggiano (La Spezia)	3/1/1939	2/18/1940	6/20/1940	Sunk	9/10/1941
Alfredo Oriani	OA	Oriani	Destroyer	Odero-Terni-Orlandi (O.T.O.), Livorno	10/28/1935	7/30/1936	7/15/1937	Transferred	1/1/1948
Aliseo	AS	Orsa 2a Serie	Torpedo Boat	Navalmeccanica, Castellammare	9/16/1941	9/20/1942	2/28/1943
Alpino	AP	Soldati 1a Serie	Destroyer	Cantiere Navale Riuniti (C.N.R.) Ancona	5/2/1937	9/8/1938	4/20/1939	Sunk	4/19/1943
Alpino Bagnolini	BI	Liuzzi	Submarine – Oceanic	Tosi, Taranto	12/15/1938	10/28/1939	12/22/1939	Captured	3/11/1943
Altair	AT	Spica tipo Perseo	Torpedo Boat	Ansaldo, Sestri Levante	10/2/1935	7/26/1936	12/23/1936	Sunk	10/20/1941
Alvise Da Mosto	DM	Navigatori	Destroyer	Cantieri Navali del Quarnaro (C.N.Q.), Fiume	8/22/1928	7/1/1929	3/15/1931	Sunk	12/1/1941
Ambra	PL	Perla	Submarine – Coastal	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	8/28/1935	5/28/1936	8/4/1936	Scuttled	9/9/1943
Ametista	AA	Sirena	Submarine – Coastal	Odero-Terni-Orlandi (O.T.O.), Muggiano (La Spezia)	9/16/1931	4/26/1933	4/1/1934	Scuttled	9/12/1943
Ammiraglio Cagni	CA	Ammiragli	Submarine – Oceanic	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	9/16/1939	7/20/1940	8/21/1941	Removed from Service	9/9/1943
Ammiraglio Caracciolo	CC	Ammiragli	Submarine – Oceanic	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	10/16/1939	10/16/1940	9/15/1941	Sunk	12/11/1941
Ammiraglio Millo	MG	Ammiragli	Submarine – Oceanic	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	10/16/1939	8/31/1940	7/15/1941	Sunk	5/13/1943
Ammiraglio Saint Bon	SB	Ammiragli	Submarine – Oceanic	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	9/16/1939	6/6/1940	3/12/1941	Sunk	1/5/1942
Andrea Doria		Duilio	Battleship	Arsenale Navale, La Spezia	4/1/1937	10/26/1940	10/26/1940	Removed from Service	6/15/1956
Andromeda	AD	Spica tipo Perseo	Torpedo Boat	Ansaldo, Sestri Levante	10/2/1935	6/28/1936	12/6/1936	Sunk	3/17/1941
Anfitrite	AN	Sirena	Submarine – Coastal	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	7/11/1931	7/5/1933	3/22/1934	Scuttled	3/6/1941
Angelo Bassini		La Masa	Destroyer	Odero-Terni-Orlandi (O.T.O.), Genova-Sestri Ponente
Animoso	AM	Orsa 2a Serie	Torpedo Boat	Ansaldo, Sestri Levante	4/3/1941	4/15/1942	8/14/1942
Antares	AN	Spica tipo Perseo	Torpedo Boat	Ansaldo, Sestri Levante	10/2/1935	7/19/1936	12/23/1936	Sunk	5/28/1943
Antilope	C 19	Gabbiano	Corvette	Odero-Terni-Orlandi (O.T.O.), Livorno	1/20/1942	5/9/1942	11/11/1942	Captured	9/9/1943
Antonio Biamonti		Osvetnik	Submarine – Coastal	Loires, Nantes (France)		12/1/1928	4/1/1941	Scuttled	8/9/1943
Antonio Da Noli	DN	Navigatori	Destroyer	Cantieri del Tirreno (C.T.), Genova-Riva Trigoso	7/25/1927	5/21/1929	12/29/1929	Sunk	7/9/1943
Antonio Mosto		Rosolino Pilo	Destroyer	Pattison, Napoli
Antonio Pigafetta	PI	Navigatori	Destroyer	Cantieri Navali del Quarnaro (C.N.Q.), Fiume	12/29/1927	11/10/1929	5/1/1931	Captured	10/1/1944
Antonio Sciesa	SC	Balilla	Submarine – Oceanic	Odero-Terni-Orlandi (O.T.O.), Muggiano (La Spezia)	10/20/1925	8/18/1928	4/12/1929	Scuttled	11/6/1942
Antoniotto Usodimare	US	Navigatori	Destroyer	Odero-Terni-Orlandi (O.T.O.), Genova-Sestri Ponente	6/1/1927	5/12/1929	11/21/1929	Sunk	6/8/1942
Ape	C 25	Gabbiano	Corvette	Navalmeccanica, Castellammare	5/6/1942	11/22/1942	5/15/1943
Aquila		Aquila	Aircraft Carrier	Ansaldo, Sestri Levante				Captured	9/8/1943
Aradam	AR	Adua	Submarine – Coastal	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	3/14/1936	10/18/1936	1/16/1937	Scuttled	9/9/1943
Arbe		Arbe	Minelayer	Kraljevica, Jugoslavia
Archimede	AH	Brin	Submarine – Oceanic	Tosi, Taranto	12/23/1937	3/5/1939	4/18/1939	Sunk	4/15/1943
Ardea	C 54	Gabbiano	Corvette	Ansaldo, Sestri Levante	3/15/1943			Captured	9/9/1943
Ardente	AD	Orsa 2a Serie	Torpedo Boat	Ansaldo, Sestri Levante	4/7/1941	5/27/1942	9/30/1942	Wrecked	1/12/1943
Ardimentoso	AT	Orsa 2a Serie	Torpedo Boat	Ansaldo, Sestri Levante	4/7/1941	6/28/1942	12/14/1942
Ardito	AR	Orsa 2a Serie	Torpedo Boat	Ansaldo, Sestri Levante	4/3/1941	3/14/1942	6/30/1942	Captured	9/16/1943
Aretusa	AU	Spica tipo Alcione	Torpedo Boat	Ansaldo, Sestri Levante	10/26/1936	2/6/1938	7/1/1938
Argento	AG	Platino	Submarine – Coastal	Tosi, Taranto	4/30/1941	2/22/1942	5/16/1942	Scuttled	8/3/1943
Argo	AO	Argo	Submarine – Coastal	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	12/9/1935	11/24/1936	8/31/1937	Scuttled	9/10/1943
Argonauta	AU	Argonauta	Submarine – Coastal	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	11/9/1929	1/19/1931	1/14/1932	Sunk	6/29/1940
Ariel	AE	Spica tipo Alcione	Torpedo Boat	Ansaldo, Sestri Levante	10/29/1936	3/14/1938	7/1/1938	Sunk	10/12/1940
Ariete		Ariete	Torpedo Boat	Ansaldo, Sestri Levante	7/15/1942	3/6/1943	8/5/1943
Armando Diaz		Condottieri tipo Cadorna	Cruiser – Light	Odero-Terni-Orlandi (O.T.O.), Muggiano (La Spezia)	7/28/1930	7/10/1932	4/29/1933	Sunk	2/25/1941
Artemide	C 39	Gabbiano	Corvette	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	3/9/1942	8/10/1942	10/10/1942	Captured	9/9/1943
Artigliere	AR	Soldati 1a Serie	Destroyer	Odero-Terni-Orlandi (O.T.O.), Livorno	2/15/1937	12/12/1937	11/14/1938	Sunk	10/12/1940
Arturo		Ariete	Torpedo Boat	Ansaldo, Sestri Levante	7/15/1942	3/27/1943	10/4/1943	Captured	9/9/1943
Ascari	AI	Soldati 1a Serie	Destroyer	Odero-Terni-Orlandi (O.T.O.), Livorno	12/11/1937	7/31/1938	5/6/1939	Sunk	3/24/1943
Ascianghi	AS	Adua	Submarine – Coastal	Odero-Terni-Orlandi (O.T.O.), Muggiano (La Spezia)	1/20/1937	7/5/1937	3/25/1938	Sunk	7/23/1943
Asteria	AE	Platino	Submarine – Coastal	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	10/16/1940	5/25/1941	11/8/1941	Sunk	2/17/1943
Atropo	AT	Foca	Submarine – Medium Range	Tosi, Taranto	7/10/1937	11/20/1938	2/14/1939	Stricken	9/9/1943
Attilio Regolo		Capitani Romani	Cruiser – Light	Odero-Terni-Orlandi (O.T.O.), Livorno	9/28/1939	8/28/1940	5/14/1942	Removed from Service	7/26/1948
Augusto Riboty	RI	Maestrale	Destroyer	Ansaldo, Sestri Levante	2/27/1915	9/24/1916	5/5/1917	Transferred
Auriga		Ariete	Torpedo Boat	Ansaldo, Sestri Levante	7/15/1942	4/15/1943	12/28/1943	Captured	9/9/1943
Aviere	AV	Soldati 1a Serie	Destroyer	Odero-Terni-Orlandi (O.T.O.), Livorno	1/16/1937	9/19/1937	8/31/1938	Sunk	12/17/1942
Avorio	AV	Platino	Submarine – Coastal	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	11/9/1940	9/6/1941	3/25/1942	Sunk	2/9/1943
Axum	AX	Adua	Submarine – Coastal	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	3/8/1936	9/27/1936	12/2/1936	Scuttled	12/28/1943
Azio		Ostia	Minelayer	Cantiere Navale Riuniti (C.N.R.) Ancona
Azio		Ostia	Mine Layer	Cantiere Navale Riuniti (C.N.R.) Ancona	1/1/1925	1/1/1927
Baiamonti	BM	Bajamonti	Submarine – Coastal	Loires, Nantes (France)	1/1/1927	12/1/1928	12/2/1928	Scuttled	9/9/1943
Baionetta	C 34	Gabbiano	Corvette	Breda, Venezia	2/24/1942	10/5/1942	5/15/1943
Baleno	BO	Dardo 2a Serie	Destroyer	Cantieri Navali del Quarnaro (C.N.Q.), Fiume	10/1/1929	3/22/1931	6/15/1932	Sunk	4/17/1941
Balestra		Ariete	Torpedo Boat	Cantieri Navali del Quarnaro (C.N.Q.), Fiume	9/5/1943
Balilla	BL	Balilla	Submarine – Oceanic	Odero-Terni-Orlandi (O.T.O.), Muggiano (La Spezia)	1/12/1925	2/20/1927	7/20/1928	Stricken	4/28/1941
Barbarigo	BO	Marcello	Submarine – Oceanic	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	2/6/1937	6/12/1938	9/19/1938	Sunk	6/16/1943
Bari		Bari	Obsolete Ship	Schichau, Danzig (Germany)	12/31/1912	4/4/1914	12/14/1914	Sunk	6/28/1943
Battolomeo Colleoni		Condottieri tipo Di Giussano	Cruiser – Light	Ansaldo, Sestri Levante	6/21/1928	12/21/1930	2/10/1932	Sunk	7/19/1940
Bausan	BN	Pisani	Submarine – Medium Range	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	1/20/1926	3/24/1928	9/15/1929	Removed from Service	11/8/1941
Beilul	BU	Adua	Submarine – Coastal	Odero-Terni-Orlandi (O.T.O.), Muggiano (La Spezia)	7/2/1937	5/22/1938	9/14/1938	Sunk	9/9/1943
Berenice	C 66	Gabbiano	Corvette	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	10/1/1942	4/21/1943	8/1/1943
Berillo	BE	Perla	Submarine – Coastal	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	9/14/1935	6/14/1936	8/5/1936	Scuttled	10/2/1940
Bersagliere	BG	Soldati 1a Serie	Destroyer	Cantiere Navale Riuniti (C.N.R.) Ancona	4/21/1937	7/3/1938	4/1/1939	Sunk	1/7/1943
Bettino Ricasoli	RC	Sella	Destroyer	Pattison, Napoli	1/11/1923	1/29/1926	12/11/2026	Transferred	3/1/1940
Bolzano		Bolzano	Cruiser – Heavy	Ansaldo, Sestri Levante	6/11/1930	8/31/1932	8/19/1933	Sunk	6/22/1944
Bombarda	C 38	Gabbiano	Corvette	Breda, Venezia	8/31/1942			Captured	9/11/1943
Bombardiere	BR	Soldati 2a Serie	Destroyer	Cantiere Navale Riuniti (C.N.R.) Ancona	10/7/1940	3/23/1942	7/15/1942	Sunk	1/17/1943
Borea	BR	Turbine	Destroyer	Ansaldo, Sestri Levante	4/29/1925	1/28/1927	11/24/1927	Sunk	7/17/1940
Brin	BR	Brin	Submarine – Oceanic	Tosi, Taranto	12/3/1936	4/3/1938	6/30/1938	Stricken	9/9/1943
Bronzo	BZ	Platino	Submarine – Coastal	Tosi, Taranto	12/2/1940	9/28/1941	1/2/1942	Captured	7/12/1943
Buccari		Fasana	Minelayer	Navalmeccanica, Castellammare
CA 1		CA I	Submarine – Midget	Caproni Taliedo			4/15/1938	Scuttled	9/9/1943
CA 2		CA I	Submarine – Midget	Caproni Taliedo				Captured	9/9/1943
CA 3		CA I	Submarine – Midget	Caproni Taliedo				Removed from Service	9/9/1943
CA 4		CA I	Submarine – Midget	Caproni Taliedo				Removed from Service	9/9/1943
Caio Duilio		Duilio	Battleship	Navalmeccanica, Castellammare	4/8/1937	7/15/1940	7/15/1940	Removed from Service	11/1/1956
Calabrone	C 30	Gabbiano	Corvette	Navalmeccanica, Castellammare	10/1/1942	6/27/1943		Captured	9/9/1943
Calipso	CI	Spica tipo Alcione	Torpedo Boat	Ansaldo, Sestri Levante	9/29/1937	6/12/1938	11/16/1938	Sunk	12/5/1940
Calliope	CP	Spica tipo Alcione	Torpedo Boat	Ansaldo, Sestri Levante	5/26/1937	4/15/1938	10/28/1938
Camicia Nera	CN	Soldati 1a Serie	Destroyer	Odero-Terni-Orlandi (O.T.O.), Livorno	1/21/1937	8/8/1937	6/30/1938	Transferred	2/21/1949
Camoscio	C 21	Gabbiano	Corvette	Odero-Terni-Orlandi (O.T.O.), Livorno	1/25/1942	5/9/1942	4/18/1943
Canopo	CA	Spica tipo Climene	Torpedo Boat	Cantieri del Tirreno (C.T.), Genova-Riva Trigoso	12/10/1935	10/1/1936	3/31/1937	Sunk	5/3/1941
Capitano Tarantini	TA	Liuzzi	Submarine – Oceanic	Tosi, Taranto	4/5/1939	1/7/1940	3/16/1930	Sunk	12/15/1940
Capriolo	C 22	Gabbiano	Corvette	Odero-Terni-Orlandi (O.T.O.), Livorno	6/3/1942	12/5/1942		Captured	9/9/1943
Carabina	C 37	Gabbiano	Corvette	Breda, Venezia	9/28/1942	8/31/1943		Captured	9/11/1943
Carabiniere	CB	Soldati 1a Serie	Destroyer	Cantieri del Tirreno (C.T.), Genova-Riva Trigoso	2/1/1937	7/23/1937	12/20/1938	Removed from Service	1/18/1965
Carlo Mirabello	MI	Maestrale	Destroyer	Ansaldo, Sestri Levante	11/21/1914	12/21/1915	8/24/1916	Sunk	5/21/1941
Carrista	CR	Soldati 2a Serie	Destroyer	Odero-Terni-Orlandi (O.T.O.), Livorno	9/11/1941			Removed from Service
Cassiopea	CS	Spica tipo Climene	Torpedo Boat	Cantieri del Tirreno (C.T.), Genova-Riva Trigoso	12/10/1935	11/22/1936	4/26/1937
Castelfitardo		Curtatone	Destroyer	Orlando, Livorno	1/1/1920	1/1/1922	1/1/1923	Captured	1/1/1943
Castore	CT	Spica tipo Climene	Torpedo Boat	Cantiere Navale Riuniti (C.N.R.) Ancona	1/25/1936	9/27/1936	1/16/1937	Sunk	6/2/1943
Catalafimi		Curtatone	Destroyer	Orlando, Livorno	1/1/1920	1/1/1922	1/1/1923	Captured	1/1/1943
Cavalletta	C 31	Gabbiano	Corvette	Navalmeccanica, Castellammare	3/12/1942
CB 1		CB	Submarine – Coastal	Caproni Taliedo			1/27/1941	Transferred	9/9/1943
CB 10		CB	Submarine – Coastal	Caproni Taliedo			8/1/1943	Removed from Service
CB 11		CB	Submarine – Coastal	Caproni Taliedo			8/24/1943	Scuttled	9/11/1943
CB 12		CB	Submarine – Coastal	Caproni Taliedo			8/24/1943	Scuttled	9/11/1943
CB 13		CB	Submarine – Coastal	Caproni Taliedo				Sunk	3/23/1945
CB 14		CB	Submarine – Coastal	Caproni Taliedo				Sunk
CB 15		CB	Submarine – Coastal	Caproni Taliedo				Sunk
CB 16		CB	Submarine – Coastal	Caproni Taliedo				Surrendered
CB 17		CB	Submarine – Coastal	Caproni Taliedo				Sunk	4/3/1945
CB 18		CB	Submarine – Coastal	Caproni Taliedo				Sunk	3/31/1945
CB 19		CB	Submarine – Coastal	Caproni Taliedo				Captured
CB 2		CB	Submarine – Coastal	Caproni Taliedo			1/27/1941	Transferred	9/9/1943
CB 20		CB	Submarine – Coastal	Caproni Taliedo				Captured
CB 21		CB	Submarine – Coastal	Caproni Taliedo				Sunk	4/29/1945
CB 22		CB	Submarine – Coastal	Caproni Taliedo				Captured
CB 3		CB	Submarine – Coastal	Caproni Taliedo			5/10/1941	Transferred	9/9/1943
CB 4		CB	Submarine – Coastal	Caproni Taliedo			5/10/1941	Transferred	9/9/1943
CB 5		CB	Submarine – Coastal	Caproni Taliedo			5/10/1941	Sunk	6/13/1942
CB 6		CB	Submarine – Coastal	Caproni Taliedo			5/10/1941	Transferred	9/9/1943
CB 7		CB	Submarine – Coastal	Caproni Taliedo			8/1/1943	Removed from Service
CB 8		CB	Submarine – Coastal	Caproni Taliedo			8/1/1943	Removed from Service
CB 9		CB	Submarine – Coastal	Caproni Taliedo			8/1/1943	Removed from Service
Centauro	CO	Spica tipo Climene	Torpedo Boat	Cantiere Navale Riuniti (C.N.R.) Ancona	5/30/1934	2/19/1936	6/16/1936	Sunk	11/4/1942
Cernia		Tritone	Submarine – Coastal	Tosi, Taranto	7/12/1943			Stricken
Cervo	C 56	Gabbiano	Corvette	Odero-Terni-Orlandi (O.T.O.), Livorno	2/25/1943
Cesare Battisti	BT	Sauro	Destroyer	Odero-Terni-Orlandi (O.T.O.), Genova-Sestri Ponente	2/9/1924	12/11/1926	4/13/1927	Scuttled	4/3/1941
Chimera	C 48	Gabbiano	Corvette	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	6/27/1942	1/30/1943	5/26/1943
Cicala	C 29	Gabbiano	Corvette	Navalmeccanica, Castellammare	9/30/1942	6/27/1943		Captured	9/9/1943
Ciclone	CI	Orsa 2a Serie	Torpedo Boat	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	5/9/1941	3/1/1942	5/21/1942	Sunk	3/8/1943
Cicogna	C 15	Gabbiano	Corvette	Ansaldo, Sestri Levante	6/15/1942	10/12/1942	1/11/1943	Wrecked	7/24/1943
Cigno	CG	Spica tipo Climene	Torpedo Boat	Cantiere Navale Riuniti (C.N.R.) Ancona	3/11/1936	11/24/1936	3/15/1937	Sunk	4/16/1943
Circe	CC	Spica tipo Alcione	Torpedo Boat	Ansaldo, Sestri Levante	9/29/1937	6/29/1938	10/4/1938	Sunk	11/27/1942
Ciro Menotti	ME	Bandiera	Submarine – Medium Range	Odero-Terni-Orlandi (O.T.O.), Muggiano (La Spezia)	5/12/1928	7/29/1929	7/29/1930	Stricken	9/9/1943
Clava	C 63	Gabbiano	Corvette	Breda, Venezia	10/20/1943
Climene	CE	Spica tipo Climene	Torpedo Boat	Cantiere Navale Riuniti (C.N.R.) Ancona	7/25/1934	1/7/1936	4/24/1936	Sunk	4/28/1943
Clio	CL	Spica tipo Alcione	Torpedo Boat	Ansaldo, Sestri Levante	10/29/1936	4/3/1938	10/2/1938
Cobalto	CB	Platino	Submarine – Coastal	Odero-Terni-Orlandi (O.T.O.), Muggiano (La Spezia)	11/26/1940	8/20/1941	3/18/1942	Sunk	8/12/1942
Cocciniglia	C 61	Gabbiano	Corvette	Navalmeccanica, Castellammare
Cofienza		Palestro	Destroyer	Orlando, Livorno
Colubrina	C 35	Gabbiano	Corvette	Breda, Venezia	3/14/1942	12/7/1942		Captured	9/11/1943
Comandante Cappellini	CL	Marcello	Submarine – Oceanic	Odero-Terni-Orlandi (O.T.O.), Muggiano (La Spezia)	4/25/1938	5/14/1939	9/23/1939	Captured	9/8/1943
Comandante Faa Di Bruno	FB	Marcello	Submarine – Oceanic	Odero-Terni-Orlandi (O.T.O.), Muggiano (La Spezia)	4/28/1938	6/18/1939	10/23/1939	Sunk	10/31/1940
Console Generale Liuzzi	LZ	Liuzzi	Submarine – Oceanic	Tosi, Taranto	10/1/1938	9/17/1939	11/21/1939	Sunk	6/27/1940
Conte di Cavour		Cavour	Battleship	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	10/1/1933	6/1/1937	10/1/1937	Removed from Service	12/15/1948
Corallo	CO	Perla	Submarine – Coastal	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	10/1/1935	8/2/1936	9/26/1936	Sunk	12/13/1942
Corazziere	CZ (CR)	Soldati 1a Serie	Destroyer	Odero-Terni-Orlandi (O.T.O.), Livorno	10/7/1937	5/22/1938	3/4/1939	Scuttled	9/9/1943
Cormorano	C 13	Gabbiano	Corvette	Societa Anonima Cantieri Cerusa, Genova-Voltri	1/14/1942	9/20/1942	3/6/1943
Corridoni	CR	Bragadin	Submarine – Minelaying	Tosi, Taranto	7/4/1927	3/30/1930	11/17/1931	Stricken	9/8/1943
Corsaro	CA	Soldati 2a Serie	Destroyer	Odero-Terni-Orlandi (O.T.O.), Livorno	1/23/1941	11/16/1941	5/16/1942	Sunk	1/9/1943
Crisalide	C 58	Gabbiano	Corvette	Navalmeccanica, Castellammare
Curtatore		Curtatone	Destroyer	Orlando, Livorno	1/1/1920	1/1/1922	1/1/1923	Sunk	1/1/1941
D1		D1	Minesweeper	Cantiere Navale Riuniti (C.N.R.) Ancona
D10		D10	Minesweeper	Cantieri Navali del Quarnaro (C.N.Q.), Fiume
Da Procida	DP	Mameli	Submarine – Medium Range	Tosi, Taranto	9/21/1925	4/1/1928	1/20/1929	Stricken	9/8/1943
Daga		Ariete	Torpedo Boat	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	1/9/1943	7/15/1943	3/27/1944	Captured	9/9/1943
Dagabur	DA	Adua	Submarine – Coastal	Tosi, Taranto	4/16/1936	9/22/1936	4/9/1937	Sunk	8/12/1942
Daino	C 55	Gabbiano	Corvette	Odero-Terni-Orlandi (O.T.O.), Livorno	3/1/1943
Danaide	C 44	Gabbiano	Corvette	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	5/9/1942	10/21/1942	2/27/1943
Dandolo	DO	Marcello	Submarine – Oceanic	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	6/14/1937	9/20/1937	3/25/1938	Stricken	9/8/1943
Daniele Manin	MA	Sauro	Destroyer	Cantieri Navali del Quarnaro (C.N.Q.), Fiume	10/9/1924	1/15/1925	5/1/1927	Sunk	4/3/1941
Dardanelli		Ostia	Mine Layer	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	1/1/1925	1/1/2925
Dardanelli		Ostia	Minelayer	Stabilimento Tecnico Triestino, Trieste
Dardo	DA	Dardo 1a Serie	Destroyer	Odero-Terni-Orlandi (O.T.O.), Genova-Sestri Ponente	1/23/1929	7/6/1930	1/25/1932	Captured	9/9/1943
Delfino	DL	Squalo	Submarine – Medium Range	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	10/27/1928	4/27/1930	6/19/1930	Sunk	3/23/1943
Dentice		Tritone	Submarine – Coastal	Tosi, Taranto	7/23/1943			Stricken
Des Geneys	DN	Pisani	Submarine – Medium Range	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	2/1/1926	6/14/1928	10/31/1929	Removed from Service	5/28/1943
Dessiè	DE	Adua	Submarine – Coastal	Tosi, Taranto	4/20/1936	11/22/1936	4/14/1937	Sunk	11/28/1942
Diamante	DI	Sirena	Submarine – Coastal	Tosi, Taranto	5/11/1931	5/21/1933	6/18/1933	Sunk	6/20/1940
Diana		Diana	Destroyer	Cantieri Navali del Quarnaro (C.N.Q.), Fiume	5/31/1939	5/20/1940	11/12/1940	Sunk	6/29/1942
Diaspro	DS	Perla	Submarine – Coastal	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	9/21/1935	7/5/1936	8/28/1936	Stricken	9/8/1943
Dragone		Ariete	Torpedo Boat	Ansaldo, Sestri Levante	7/15/1942	8/14/1943	4/3/1944	Captured	9/9/1943
Driade	C 43	Gabbiano	Corvette	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	5/9/1942	10/7/1942	1/14/1943
Durazzo		Fasana	Minelayer	Navalmeccanica, Castellammare
Durbo	DU	Adua	Submarine – Coastal	Odero-Terni-Orlandi (O.T.O.), Muggiano (La Spezia)	3/8/1937	3/6/1938	7/1/1938	Scuttled	10/18/1940
Egeria	C 67	Gabbiano	Corvette	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	2/15/1943	7/3/1943		Captured	9/9/1943
Emanuele Filiberto Duca d’Aosta		Condottieri tipo Duca di Aosta	Cruiser – Light	Odero-Terni-Orlandi (O.T.O.), Livorno	10/29/1932	4/22/1934	3/17/1935	Removed from Service	2/12/1949
Emanuele Pessagno	PS	Navigatori	Destroyer	Cantiere Navale Riuniti (C.N.R.) Ancona	10/9/1927	8/12/1929	3/10/1930	Sunk	5/29/1942
Emo	EO	Marcello	Submarine – Oceanic	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	2/16/1937	6/29/1938	10/14/1938	Sunk	11/10/1942
Enrico Cosenz		La Masa	Destroyer	Odero-Terni-Orlandi (O.T.O.), Genova-Sestri Ponente
Enrico Tazzoli	TZ	Calvi	Submarine – Oceanic	Odero-Terni-Orlandi (O.T.O.), Muggiano (La Spezia)	9/16/1932	10/13/1935	4/18/1936	Sunk	5/18/1943
Eridano		Ariete	Torpedo Boat	Ansaldo, Sestri Levante	7/15/1942	7/12/1943	3/4/1944	Captured	9/9/1943
Eritrea		Eritrea	Corvette	Navalmeccanica, Castellammare	7/25/1935	9/20/1936	2/10/1937
Ermanno Carlotto		Carlotto	River Gunboat	Shangai Dode Engineering	1/1/1920	1/1/1921	1/1/1921	Captured	8/9/1943
Ernestro Giovannini		Andrea Bafine	Escort Gunboat	Pattison, Napoli	1/1/1920	1/1/1922	1/1/1922	Stricken
Espero	ES	Turbine	Destroyer	Ansaldo, Sestri Levante	4/29/1925	8/31/1927		Sunk	6/28/1940
Etna		Etna	Cruiser – Light	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	9/23/1939	5/28/1942
Ettore Fieramosca	FM	Fieramosca	Submarine – Oceanic	Tosi, Taranto	7/17/1926	6/14/1929	12/5/1931	Stricken	3/1/1943
Eugenio di Savoia		Condottieri tipo Duca di Aosta	Cruiser – Light	Ansaldo, Sestri Levante	7/6/1933	3/16/1935	1/16/1936	Removed from Service	6/26/1951
Euridice	C 70	Gabbiano	Corvette	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	7/1/1943
Euro	ER	Turbine	Destroyer	Cantieri del Tirreno (C.T.), Genova-Riva Trigoso	1/24/1925	7/7/1927	12/22/1927	Sunk	10/1/1943
Euterpe	C 41	Gabbiano	Corvette	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	4/2/1942	10/22/1942	1/20/1943	Scuttled	9/9/1943
Farfalla	C 59	Gabbiano	Corvette	Navalmeccanica, Castellammare
Fasana		Fasana	Minelayer	Navalmeccanica, Castellammare
Fenice	C 50	Gabbiano	Corvette	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	6/27/1942	3/1/1943	6/15/1943
Ferraris	FE	Galilei	Submarine – Medium Range	Tosi, Taranto	10/15/1931	8/11/1934	1/31/1935	Scuttled	10/25/1941
Fionda		Ariete	Torpedo Boat	Cantieri Navali del Quarnaro (C.N.Q.), Fiume	8/26/1942
Fisalia	FS	Argonauta	Submarine – Coastal	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	11/20/1929	5/2/1931	6/4/1932	Sunk	9/28/1941
Fiume		Zara	Cruiser – Heavy	Stabilimento Tecnico Triestino, Trieste	4/29/1929	4/27/1930	11/23/1931	Sunk	3/28/1941
Flora	C 46	Gabbiano	Corvette	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	5/16/1942	12/1/1942	4/26/1943
Flutto	FL	Tritone	Submarine – Coastal	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	12/1/1941	9/19/1942	3/20/1943	Sunk	7/11/1943
Foca	FO	Foca	Submarine – Medium Range	Tosi, Taranto	1/15/1936	6/27/1937	11/6/1937	Sunk	10/15/1940
Folaga	C 16	Gabbiano	Corvette	Ansaldo, Sestri Levante	6/15/1942	11/14/1942	2/16/1943
Folgore	FG	Dardo 2a Serie	Destroyer	Partenopei, Napoli	1/30/1930	4/26/1931	7/1/1932	Sunk	12/2/1942
Fortunale	FT	Orsa 2a Serie	Torpedo Boat	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	5/9/1941	4/18/1942	8/16/1942
FR 11 (ex jean de Vienne)		FR11	Cruiser – Light	Arsenal de la Marine, Lorient
FR 111		FR 111	Submarine – Medium Range	Arsenal de Brest (France)	1/1/1924	3/16/1926	1/20/1943	Sunk	2/28/1943
FR 12 (ex La Galissoniere)		FR12	Cruiser – Light	Arsenal de la Marine, Lorient
Francesco Crispi	CP (CR)	Sella	Destroyer	Pattison, Napoli	2/21/1923	9/12/1925	4/29/1927	Captured
Francesco Nullo	NL	Sauro	Destroyer	Cantieri Navali del Quarnaro (C.N.Q.), Fiume	10/9/1924	11/14/1925	4/15/1927	Sunk	10/21/1940
Francesco Rismondo ex Osvetnik		Lürssen “S 2”	Motor Torpedo Boat	Lurssen, Vegesak
Francesco Stocco		Sirtori	Destroyer	Odero-Terni-Orlandi (O.T.O.), Genova-Sestri Ponente
Fratelli Bandiera	BA	Bandiera	Submarine – Medium Range	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	2/11/1928	7/7/1929	6/2/1930	Stricken	9/9/1943
Fratelli Cairoli		Rosolino Pilo	Destroyer	Odero-Terni-Orlandi (O.T.O.), Genova-Sestri Ponente
Freccia	FR	Dardo 1a Serie	Destroyer	Cantieri del Tirreno (C.T.), Genova-Riva Trigoso	2/20/1929	8/3/1930	10/21/1931	Sunk	8/8/1943
Fuciliere	FC	Soldati 1a Serie	Destroyer	Cantiere Navale Riuniti (C.N.R.) Ancona	5/2/1937	7/31/1938	2/10/1939	Transferred	1/17/1950
Fulmine	FL	Dardo 2a Serie	Destroyer	Cantieri Navali del Quarnaro (C.N.Q.), Fiume	10/1/1929	8/2/1931	7/14/1932	Sunk	11/9/1941
Gabbiano	C 11	Gabbiano	Corvette	Societa Anonima Cantieri Cerusa, Genova-Voltri	1/14/1942	6/23/1942	10/3/1942
Galatea	GT	Sirena	Submarine – Coastal	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	7/18/1931	5/5/1933	6/25/1934	Removed from Service	9/9/1943
Galilei	GL	Galilei	Submarine – Medium Range	Tosi, Taranto	10/15/1931	3/19/1934	10/16/1934	Captured	6/19/1940
Galvani	GA	Brin	Submarine – Oceanic	Tosi, Taranto	12/3/1936	5/22/1938	7/29/1938	Sunk	6/24/1940
Gazzella	C 20	Gabbiano	Corvette	Odero-Terni-Orlandi (O.T.O.), Livorno	1/22/1942	5/9/1942	2/6/1943	Sunk	8/5/1943
Gemma	GE	Perla	Submarine – Coastal	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	9/7/1935	5/21/1936	7/8/1936	Sunk	10/8/1940
Generale Achille Papa		Cantone	Destroyer	Odero-Terni-Orlandi (O.T.O.), Genova-Sestri Ponente
Generale Antonio Cantone		Cantone	Destroyer	Odero-Terni-Orlandi (O.T.O.), Genova-Sestri Ponente
Generale Antonio Cascino		Cantone	Destroyer	Odero-Terni-Orlandi (O.T.O.), Genova-Sestri Ponente
Generale Antonio Chinotto		Cantone	Destroyer	Odero-Terni-Orlandi (O.T.O.), Genova-Sestri Ponente
Generale Carlo Montanari		Cantone	Destroyer	Odero-Terni-Orlandi (O.T.O.), Genova-Sestri Ponente
Generale Marcello Prestinari		Cantone	Destroyer	Odero-Terni-Orlandi (O.T.O.), Genova-Sestri Ponente
Geniere	GE	Soldati 1a Serie	Destroyer	Odero-Terni-Orlandi (O.T.O.), Livorno	8/26/1937	2/27/1938	12/14/1938	Sunk	3/1/1943
Ghibli	GH	Orsa 2a Serie	Torpedo Boat	Navalmeccanica, Castellammare	8/30/1941	2/28/1943	7/24/1943	Captured	9/9/1943
Giacinto Carini		La Masa	Destroyer	Odero-Terni-Orlandi (O.T.O.), Genova-Sestri Ponente
Giacomo Medici		La Masa	Destroyer	Odero-Terni-Orlandi (O.T.O.), Genova-Sestri Ponente
Giada	GD	Platino	Submarine – Coastal	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	10/16/1940	6/10/1941	12/8/1941	Removed from Service	9/9/1943
Giosue’ Carducci	CD	Oriani	Destroyer	Odero-Terni-Orlandi (O.T.O.), Livorno	2/5/1936	10/28/1936	11/1/1937	Sunk	4/28/1941
Giovanni Acerbi		Sirtori	Destroyer	Odero-Terni-Orlandi (O.T.O.), Genova-Sestri Ponente
Giovanni Berta		Giuseppe Biglieri	Minesweeper	Schiffbau G.S., Bremerhaven
Giovanni Da Verazzano	DV	Navigatori	Destroyer	Cantieri Navali del Quarnaro (C.N.Q.), Fiume	8/17/1927	12/15/1928	7/25/1930	Sunk	10/19/1942
Giovanni dalle Bande Nere		Condottieri tipo Di Giussano	Cruiser – Light	Navalmeccanica, Castellammare	10/31/1928	4/27/1930	4/1/1931	Sunk	4/1/1942
Giovanni Nicotera	NC	Sella	Destroyer	Pattison, Napoli	5/6/1925	6/24/1926	1/8/1927	Transferred	3/1/1940
Giulio Cesare	RI	Osvetnik	Submarine – Coastal	Loires, Nantes (France)		1/14/1929	4/1/1941	Scuttled	8/9/1943
Giulio Germanico		Capitani Romani	Cruiser – Light	Odero-Terni-Orlandi (O.T.O.), Livorno	4/3/1939	7/26/1941	11/9/1943
Giuseppe Biglieri		Giuseppe Biglieri	Minesweeper	Schiffbau G.S., Bremerhaven
Giuseppe Cesare Abba		Rosolino Pilo	Destroyer	Odero-Terni-Orlandi (O.T.O.), Genova-Sestri Ponente
Giuseppe Dezza		Rosolino Pilo	Destroyer	Odero-Terni-Orlandi (O.T.O.), Genova-Sestri Ponente				Captured	9/8/1943
Giuseppe Finzi		Cavour	Battleship	Cantieri del Tirreno (C.T.), Genova-Riva Trigoso	10/1/1933	10/1/1937	6/2/1937	Removed from Service	2/15/1945
Giuseppe Garibaldi		Condottieri tipo Duca degli Abruzzi	Cruiser – Light	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	1/12/1933	4/21/1936	12/20/1937	Removed from Service	5/1/1961
Giuseppe La Farina		La Masa	Destroyer	Odero-Terni-Orlandi (O.T.O.), Genova-Sestri Ponente
Giuseppe La Masa		La Masa	Destroyer	Odero-Terni-Orlandi (O.T.O.), Genova-Sestri Ponente
Giuseppe Missori		Rosolino Pilo	Destroyer	Odero-Terni-Orlandi (O.T.O.), Genova-Sestri Ponente				Captured	9/8/1943
Giuseppe Sirtori		Sirtori	Destroyer	Odero-Terni-Orlandi (O.T.O.), Genova-Sestri Ponente
Gladio		Ariete	Torpedo Boat	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	1/9/1943	6/15/1943	1/8/1944	Captured	9/9/1943
Glauco	GU	Glauco	Submarine – Oceanic	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	10/10/1933	1/5/1935	9/20/1935	Scuttled	6/27/1941
Gondar	GO	Adua	Submarine – Coastal	Odero-Terni-Orlandi (O.T.O.), Muggiano (La Spezia)	2/1/1936	9/13/1936	11/14/1936	Scuttled	9/30/1940
Gorgo	GG	Tritone	Submarine – Coastal	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	5/15/1941	1/30/1942	11/11/1942	Sunk	5/21/1943
Gorizia		Zara	Cruiser – Heavy	Odero-Terni-Orlandi (O.T.O.), Livorno	3/17/1930	12/28/1930	12/23/1931	Captured	9/8/1943
Granatiere	GN	Soldati 1a Serie	Destroyer	Cantiere Navale Riuniti (C.N.R.) Ancona	4/5/1937	4/24/1938	2/1/1939	Removed from Service	7/1/1958
Granito	GR	Platino	Submarine – Coastal	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	11/9/1940	8/5/1941	3/31/1942	Sunk	11/9/1942
Grecale	GR	Maestrale	Destroyer	Cantiere Navale Riuniti (C.N.R.) Ancona	9/25/1931	6/17/1934	11/15/1934	Removed from Service	5/31/1964
Grillo	C28	Gabbiano	Corvette	Navalmeccanica, Castellammare	6/22/1942	3/21/1943		Captured	9/9/1943
Gronco		Tritone	Submarine – Coastal	Odero-Terni-Orlandi (O.T.O.), Muggiano (La Spezia)	5/15/1941	1/30/1942	11/11/1942	Scuttled	9/9/1943
Groppo	GP	Orsa 2a Serie	Torpedo Boat	Navalmeccanica, Castellammare	6/18/1941	4/19/1942	8/31/1942	Sunk	5/25/1943
Gru	C 18	Gabbiano	Corvette	Ansaldo, Sestri Levante	7/6/1942	12/23/1942	4/29/1943
Guglielmo Marconi	FZ	Calvi	Submarine – Oceanic	Odero-Terni-Orlandi (O.T.O.), Muggiano (La Spezia)	8/1/1932	6/29/1935	1/8/1936	Sunk	9/8/1943
Guglielmotti	GI	Brin	Submarine – Oceanic	Tosi, Taranto	12/3/1936	9/11/1938	10/12/1938	Sunk	3/17/1942
H1		Holland	Submarine – Coastal	Electric Boat Company, (Canada)	1/1/1916	1/1/1916
H2		Holland	Submarine – Coastal	Electric Boat Company, (Canada)	1/1/1916	1/1/1916
H4		Holland	Submarine – Coastal	Electric Boat Company, (Canada)	1/1/1916	1/1/1917
H6		Holland	Submarine – Coastal	Electric Boat Company, (Canada)	1/1/1916	1/1/1916
H8		Holland	Submarine – Coastal	Electric Boat Company, (Canada)	1/1/1916	1/1/1916
Ibis	C 17	Gabbiano	Corvette	Ansaldo, Sestri Levante	6/18/1942	12/12/1942	4/3/1943
Impavido	IM	Orsa 2a Serie	Torpedo Boat	Cantieri del Tirreno (C.T.), Genova-Riva Trigoso	8/15/1941	2/24/1943	4/30/1943	Captured	9/16/1943
Impero		Littorio	Battleship	Ansaldo, Sestri Levante	5/14/1938	11/15/1940
Impetuoso	IP	Orsa 2a Serie	Torpedo Boat	Cantieri del Tirreno (C.T.), Genova-Riva Trigoso	8/15/1941	4/20/1943	6/7/1943	Scuttled	9/11/1943
Indomito	ID	Orsa 2a Serie	Torpedo Boat	Cantieri del Tirreno (C.T.), Genova-Riva Trigoso	1/10/1942	7/6/1943	8/4/1943
Intrepido	IT	Orsa 2a Serie	Torpedo Boat	Cantieri del Tirreno (C.T.), Genova-Riva Trigoso	1/31/1942	9/8/1943	1/16/1944	Captured	9/9/1943
Ippolito Nievo		Rosolino Pilo	Destroyer	Odero-Terni-Orlandi (O.T.O.), Genova-Sestri Ponente				Removed from Service	1/1/1938
Iride	IR	Perla	Submarine – Coastal	Odero-Terni-Orlandi (O.T.O.), Muggiano (La Spezia)	9/3/1935	7/30/1936	11/6/1936	Sunk	8/22/1939
Jalea	IA	Argonauta	Submarine – Coastal	Odero-Terni-Orlandi (O.T.O.), Muggiano (La Spezia)	1/20/1930	6/15/1932	3/16/1933	Removed from Service	9/9/1942
Jantina	IN	Argonauta	Submarine – Coastal	Odero-Terni-Orlandi (O.T.O.), Muggiano (La Spezia)	1/20/1930	5/16/1932	3/1/1933	Sunk	7/5/1940
Lafolè	LF	Adua	Submarine – Coastal	Odero-Terni-Orlandi (O.T.O.), Muggiano (La Spezia)	6/30/1937	4/10/1938	8/13/1938	Sunk	10/20/1939
Lampo	LP	Dardo 2a Serie	Destroyer	Partenopei, Napoli	1/30/1930	7/26/1931	8/13/1932	Sunk	4/30/1943
Lancia		Ariete	Torpedo Boat	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	3/24/1943	5/7/1944	9/7/1944	Captured	9/9/1943
Lanciere	LN	Soldati 1a Serie	Destroyer	Cantieri del Tirreno (C.T.), Genova-Riva Trigoso	2/1/1937	12/18/1938	4/25/1939	Wrecked	3/23/1942
Lanzerotto Maloncello	MO	Navigatori	Destroyer	Ansaldo, Sestri Levante	8/30/1927	3/14/1929	1/18/1930	Sunk	3/24/1943
Legionario	LG	Soldati 2a Serie	Destroyer	Odero-Terni-Orlandi (O.T.O.), Livorno	10/21/1940	4/16/1941	3/1/1942	Transferred	8/15/1948
Legnano		Ostia	Mine Layer	Cantiere Navale Riuniti (C.N.R.) Ancona	1/1/1925	1/1/1926
Legnano		Ostia	Minelayer	Cantiere Navale Riuniti (C.N.R.) Ancona
Leonardo Da Vinci	MN	Marconi	Submarine – Oceanic	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	9/19/1938	7/30/1939	2/8/1940	Sunk	10/28/1941
Leone	LE	Leone	Destroyer	Ansaldo, Sestri Levante	11/23/1921	10/1/1923	7/1/1923	Wrecked	4/1/1941
Leone Pancaldo	PN	Navigatori	Destroyer	Cantieri del Tirreno (C.T.), Genova-Riva Trigoso	7/7/1927	2/5/1929	11/30/1929	Sunk	5/29/1942
Lepanto		Ostia	Minelayer	Cantiere Navale Riuniti (C.N.R.) Ancona
Lepanto		Ostia	Mine Layer	Cantiere Navale Riuniti (C.N.R.) Ancona	1/1/1925	1/1/1925
Libeccio	LI	Maestrale	Destroyer	Cantieri del Tirreno (C.T.), Genova-Riva Trigoso	9/29/1931	7/4/1934	11/23/1934	Sunk	11/9/1941
Libellula	C 32	Gabbiano	Corvette	Navalmeccanica, Castellammare	12/3/1942
Libra	LB	Spica tipo Alcione	Torpedo Boat	Cantieri Navali del Quarnaro (C.N.Q.), Fiume	12/7/1936	10/3/1937	1/19/1938
Lince	LC	Spica tipo Alcione	Torpedo Boat	Cantieri Navali del Quarnaro (C.N.Q.), Fiume	12/7/1936	1/15/1938	4/1/1938	Sunk	8/28/1943
Lira	LR	Spica tipo Alcione	Torpedo Boat	Cantieri Navali del Quarnaro (C.N.Q.), Fiume	12/7/1936	9/12/1937	1/1/1938	Scuttled	9/9/1943
Littorio		Littorio	Battleship	Ansaldo, Sestri Levante	10/28/1934	8/22/1937	5/6/1940	Removed from Service	6/1/1948
Lubiana (ex Ljubljana)		Sebenico	Destroyer	Yarrow, Glasgow
Luca Tarigo	TA	Navigatori	Destroyer	Ansaldo, Sestri Levante	8/30/1927	12/9/1928	11/16/1929	Sunk	4/16/1941
Lucciola	C 27	Gabbiano	Corvette	Navalmeccanica, Castellammare	6/22/1942	3/21/1943		Scuttled	9/13/1943
Luciano Manara		Marconi	Submarine – Oceanic	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	9/19/1938	9/16/1939	3/8/1940	Sunk	5/23/1943
Luigi Cadorna		Condottieri tipo Cadorna	Cruiser – Light	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	9/19/1930	9/30/1931	8/11/1933	Removed from Service	5/1/1951
Luigi di Savoia Duca degli Abruzzi		Condottieri tipo Duca degli Abruzzi	Cruiser – Light	Odero-Terni-Orlandi (O.T.O.), Muggiano (La Spezia)	12/28/1933	4/21/1936	12/1/1937	Removed from Service	5/1/1961
Luigi Torelli	MR	Bandiera	Submarine – Medium Range	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	2/18/1928	10/5/1929	9/9/1930	Stricken	9/10/1943
Lupo	LP (LU)	Spica tipo Alcione	Torpedo Boat	Cantieri Navali del Quarnaro (C.N.Q.), Fiume	12/7/1936	11/7/1937	2/28/1938	Sunk	12/2/1942
Macallè		Adua	Submarine – Coastal	Odero-Terni-Orlandi (O.T.O.), Muggiano (La Spezia)	3/1/1936	10/29/1936	3/1/1937	Sunk	6/15/1940
Maestrale	MA	Maestrale	Destroyer	Cantiere Navale Riuniti (C.N.R.) Ancona	9/25/1931	4/5/1934	9/2/1934	Scuttled	9/9/1943
Maggiolino	C 60	Gabbiano	Corvette	Navalmeccanica, Castellammare
Maggiore Baracca	BG	Marconi	Submarine – Oceanic	Odero-Terni-Orlandi (O.T.O.), Muggiano (La Spezia)	3/1/1939	4/21/1940	7/10/1940	Sunk	9/8/1941
Malachite	MH	Perla	Submarine – Coastal	Odero-Terni-Orlandi (O.T.O.), Muggiano (La Spezia)	8/31/1935	7/15/1936	1/6/1936	Sunk	2/9/1943
Maleda (ex Mljet)		Arbe	Minelayer	Kraljevica, Jugoslavia
Mameli	MM	Mameli	Submarine – Medium Range	Tosi, Taranto	8/17/1925	12/9/1926	1/20/1929	Stricken	9/9/1943
Marangone	C 52	Gabbiano	Corvette	Ansaldo, Sestri Levante	3/15/1943	9/16/1943	8/16/1944	Captured	9/9/1943
Marcantonio Bragadin		Marconi	Submarine – Oceanic	Odero-Terni-Orlandi (O.T.O.), Muggiano (La Spezia)	2/15/1939	1/6/1940	5/15/1940	Captured	9/8/1943
Marcantonio Colonna	BG	Bragadin	Submarine – Minelaying	Tosi, Taranto	2/2/1927	7/21/1929	11/16/1931	Stricken	9/9/1943
Marcello	ML	Marcello	Submarine – Oceanic	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	1/4/1937	9/20/1937	3/5/1938	Sunk	2/22/1941
Marea	MA	Tritone	Submarine – Coastal	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	12/1/1941	12/10/1942	5/7/1943	Removed from Service	9/9/1943
Mario Sonzini		Giuseppe Biglieri	Minesweeper	Schiffbau G.S., Bremerhaven
MAS 1D (ex TC 1)		Thornycroft 55	Motor Torpedo Boat	Thornycroft, Londra
MAS 204		Baglietto 12 ton	Motor Torpedo Boat	Baglietto, Varazze		4/12/1918		Scuttled	4/8/1941
MAS 206		Baglietto 12 ton	Motor Torpedo Boat	Baglietto, Varazze		6/14/1918		Scuttled	4/8/1941
MAS 210		Baglietto 12 ton	Motor Torpedo Boat	Baglietto, Varazze		8/3/1918		Scuttled	4/8/1941
MAS 213		Baglietto 12 ton	Motor Torpedo Boat	Baglietto, Varazze		8/19/1918		Scuttled	4/8/1941
MAS 216		Baglietto 12 ton	Motor Torpedo Boat	Baglietto, Varazze		9/16/1918		Scuttled	4/8/1941
MAS 2D (ex TC 2)		Thornycroft 55	Motor Torpedo Boat	Thornycroft, Londra
MAS 423		S.V.A.N velocissimo da 13 tonnellate	Motor Torpedo Boat	Societa Veneziana Automobili Navali (S.V.A.N.), Venezia
MAS 424		Tipo Velocissimo “500” 1a Serie Sperimentale	Motor Torpedo Boat	Baglietto, Varazze
MAS 426		S.V.A.N velocissimo da 13 tonnellate	Motor Torpedo Boat	Societa Veneziana Automobili Navali (S.V.A.N.), Venezia
MAS 430		S.V.A.N velocissimo da 13 tonnellate	Motor Torpedo Boat	Societa Veneziana Automobili Navali (S.V.A.N.), Venezia
MAS 431		Baglietto 1931	Motor Torpedo Boat	Baglietto, Varazze
MAS 432		S.V.A.N velocissimo da 13 tonnellate	Motor Torpedo Boat	Societa Veneziana Automobili Navali (S.V.A.N.), Venezia
MAS 433		S.V.A.N velocissimo da 13 tonnellate	Motor Torpedo Boat	Societa Veneziana Automobili Navali (S.V.A.N.), Venezia
MAS 434		S.V.A.N velocissimo da 13 tonnellate	Motor Torpedo Boat	Societa Veneziana Automobili Navali (S.V.A.N.), Venezia
MAS 437		S.V.A.N velocissimo diesel	Motor Torpedo Boat	Societa Veneziana Automobili Navali (S.V.A.N.), Venezia
MAS 438		Baglietto 1934	Motor Torpedo Boat	Baglietto, Varazze
MAS 439		Baglietto 1934	Motor Torpedo Boat	Baglietto, Varazze
MAS 440		Baglietto 1934	Motor Torpedo Boat	Baglietto, Varazze
MAS 441		Baglietto 1934	Motor Torpedo Boat	Baglietto, Varazze
MAS 451		Tipo Biglietto Velocissimo	Motor Torpedo Boat	Picchiotto, Limite d’Arno
MAS 452		Tipo Biglietto Velocissimo	Motor Torpedo Boat	Picchiotto, Limite d’Arno
MAS 501		Tipo Velocissimo “500” 1a Serie	Motor Torpedo Boat	Picchiotto, Limite d’Arno
MAS 502		Tipo Velocissimo “500” 1a Serie	Motor Torpedo Boat	Picchiotto, Limite d’Arno
MAS 503		Tipo Velocissimo “500” 1a Serie	Motor Torpedo Boat	Picchiotto, Limite d’Arno
MAS 504		Tipo Velocissimo “500” 1a Serie	Motor Torpedo Boat	Picchiotto, Limite d’Arno
MAS 505		Tipo Velocissimo “500” 1a Serie	Motor Torpedo Boat	Picchiotto, Limite d’Arno
MAS 507		Tipo Velocissimo “500” 1a Serie	Motor Torpedo Boat	Picchiotto, Limite d’Arno
MAS 509		Tipo Velocissimo “500” 1a Serie	Motor Torpedo Boat	Picchiotto, Limite d’Arno
MAS 510		Tipo Velocissimo “500” 1a Serie	Motor Torpedo Boat	Picchiotto, Limite d’Arno
MAS 512		Tipo Velocissimo “500” 1a Serie	Motor Torpedo Boat	Picchiotto, Limite d’Arno
MAS 513		Tipo Velocissimo “500” 1a Serie	Motor Torpedo Boat	Picchiotto, Limite d’Arno
MAS 514		Tipo Velocissimo “500” 1a Serie	Motor Torpedo Boat	Picchiotto, Limite d’Arno
MAS 515		Tipo Velocissimo “500” 1a Serie	Motor Torpedo Boat	Picchiotto, Limite d’Arno
MAS 516		Tipo Velocissimo “500” 1a Serie	Motor Torpedo Boat	Picchiotto, Limite d’Arno
MAS 517		Tipo Velocissimo “500” 1a Serie	Motor Torpedo Boat	Picchiotto, Limite d’Arno
MAS 518		Tipo Velocissimo “500” 1a Serie	Motor Torpedo Boat	Picchiotto, Limite d’Arno
MAS 519		Tipo Velocissimo “500” 1a Serie	Motor Torpedo Boat	Celli, Venezia
MAS 520		Tipo Velocissimo “500” 1a Serie	Motor Torpedo Boat	Celli, Venezia
MAS 521		Tipo Velocissimo “500” 1a Serie	Motor Torpedo Boat	Celli, Venezia
MAS 522		Tipo Velocissimo “500” 1a Serie	Motor Torpedo Boat	Celli, Venezia
MAS 523		Tipo Velocissimo “500” 1a Serie	Motor Torpedo Boat	Societa Veneziana Automobili Navali (S.V.A.N.), Venezia
MAS 524		Tipo Velocissimo “500” 1a Serie	Motor Torpedo Boat	Societa Veneziana Automobili Navali (S.V.A.N.), Venezia
MAS 525		Tipo Velocissimo “500” 2a Serie	Motor Torpedo Boat	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone
MAS 526		Tipo Velocissimo “500” 2a Serie	Motor Torpedo Boat	Baglietto, Varazze
MAS 527		Tipo Velocissimo “500” 2a Serie	Motor Torpedo Boat	Baglietto, Varazze
MAS 528		Tipo Velocissimo “500” 2a Serie	Motor Torpedo Boat	Baglietto, Varazze
MAS 529		Tipo Velocissimo “500” 2a Serie	Motor Torpedo Boat	Baglietto, Varazze
MAS 530		Tipo Velocissimo “500” 2a Serie	Motor Torpedo Boat	Baglietto, Varazze
MAS 531		Tipo Velocissimo “500” 2a Serie	Motor Torpedo Boat	Baglietto, Varazze
MAS 532		Tipo Velocissimo “500” 2a Serie	Motor Torpedo Boat	Baglietto, Varazze
MAS 533		Tipo Velocissimo “500” 2a Serie	Motor Torpedo Boat	Baglietto, Varazze
MAS 534		Tipo Velocissimo “500” 2a Serie	Motor Torpedo Boat	Baglietto, Varazze
MAS 535		Tipo Velocissimo “500” 2a Serie	Motor Torpedo Boat	Baglietto, Varazze
MAS 536		Tipo Velocissimo “500” 2a Serie	Motor Torpedo Boat	Picchiotto, Limite d’Arno
MAS 537		Tipo Velocissimo “500” 2a Serie	Motor Torpedo Boat	Picchiotto, Limite d’Arno
MAS 538		Tipo Velocissimo “500” 2a Serie	Motor Torpedo Boat	Picchiotto, Limite d’Arno
MAS 539		Tipo Velocissimo “500” 2a Serie	Motor Torpedo Boat	Picchiotto, Limite d’Arno
MAS 540		Tipo Velocissimo “500” 2a Serie	Motor Torpedo Boat	Celli, Venezia
MAS 541		Tipo Velocissimo “500” 2a Serie	Motor Torpedo Boat	Celli, Venezia
MAS 542		Tipo Velocissimo “500” 2a Serie	Motor Torpedo Boat	Celli, Venezia
MAS 543		Tipo Velocissimo “500” 2a Serie	Motor Torpedo Boat	Celli, Venezia
MAS 544		Tipo Velocissimo “500” 2a Serie	Motor Torpedo Boat	Celli, Venezia
MAS 545		Tipo Velocissimo “500” 2a Serie	Motor Torpedo Boat	Picchiotto, Limite d’Arno
MAS 546		Tipo Velocissimo “500” 2a Serie	Motor Torpedo Boat	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone
MAS 547		Tipo Velocissimo “500” 2a Serie	Motor Torpedo Boat	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone
MAS 548		Tipo Velocissimo “500” 2a Serie	Motor Torpedo Boat	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone
MAS 549		Tipo Velocissimo “500” 2a Serie	Motor Torpedo Boat	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone
MAS 550		Tipo Velocissimo “500” 2a Serie	Motor Torpedo Boat	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone
MAS 551		Tipo Velocissimo “500” 3a Serie	Motor Torpedo Boat	C.N.A., Roma
MAS 552		Tipo Velocissimo “500” 3a Serie	Motor Torpedo Boat	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone
MAS 553		Tipo Velocissimo “500” 3a Serie	Motor Torpedo Boat	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone
MAS 554		Tipo Velocissimo “500” 3a Serie	Motor Torpedo Boat	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone
MAS 555		Tipo Velocissimo “500” 3a Serie	Motor Torpedo Boat	Picchiotto, Limite d’Arno
MAS 556		Tipo Velocissimo “500” 3a Serie	Motor Torpedo Boat	Picchiotto, Limite d’Arno
MAS 557		Tipo Velocissimo “500” 3a Serie	Motor Torpedo Boat	Picchiotto, Limite d’Arno
MAS 558		Tipo Velocissimo “500” 3a Serie	Motor Torpedo Boat	Celli, Venezia
MAS 559		Tipo Velocissimo “500” 3a Serie	Motor Torpedo Boat	Celli, Venezia
MAS 560		Tipo Velocissimo “500” 3a Serie	Motor Torpedo Boat	Celli, Venezia
MAS 561		Tipo Velocissimo “500” 3a Serie	Motor Torpedo Boat	Baglietto, Varazze
MAS 562		Tipo Velocissimo “500” 3a Serie	Motor Torpedo Boat	Baglietto, Varazze
MAS 563		Tipo Velocissimo “500” 3a Serie	Motor Torpedo Boat	Baglietto, Varazze
MAS 564		Tipo Velocissimo “500” 3a Serie	Motor Torpedo Boat	Baglietto, Varazze
MAS 566		Tipo Velocissimo “500” 4a Serie	Motor Torpedo Boat	Baglietto, Varazze
MAS 567		Tipo Velocissimo “500” 4a Serie	Motor Torpedo Boat	Baglietto, Varazze
MAS 568		Tipo Velocissimo “500” 4a Serie	Motor Torpedo Boat	Baglietto, Varazze
MAS 569		Tipo Velocissimo “500” 4a Serie	Motor Torpedo Boat	Baglietto, Varazze
MAS 570		Tipo Velocissimo “500” 4a Serie	Motor Torpedo Boat	Baglietto, Varazze
MAS 571		Tipo Velocissimo “500” 4a Serie	Motor Torpedo Boat	Picchiotto, Limite d’Arno
MAS 572		Tipo Velocissimo “500” 4a Serie	Motor Torpedo Boat	Picchiotto, Limite d’Arno
MAS 573		Tipo Velocissimo “500” 4a Serie	Motor Torpedo Boat	Picchiotto, Limite d’Arno
MAS 574		Tipo Velocissimo “500” 4a Serie	Motor Torpedo Boat	Celli, Venezia
MAS 575		Tipo Velocissimo “500” 4a Serie	Motor Torpedo Boat	Celli, Venezia
MAS 576		Tipo Velocissimo “500” 4a Serie	Motor Torpedo Boat	Celli, Venezia
Medusa	MU	Argonauta	Submarine – Coastal	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	11/30/1929	12/10/1931	10/8/1932	Sunk	1/30/1942
Melpomene	C 68	Gabbiano	Corvette	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	3/25/1943	8/29/1943		Captured	9/9/1943
Meteo		Abastro	Minesweeper	Neptun, Rostok
Micca	MC	Micca	Submarine – Minelaying	Tosi, Taranto	10/15/1931	3/31/1935	1/10/1935	Sunk	7/29/1943
Michele Bianchi	CN	Pisani	Submarine – Medium Range	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	3/12/1925	12/26/2027	7/10/1929	Removed from Service	6/1/1942
Milazzo		Ostia	Minelayer	Stabilimento Tecnico Triestino, Trieste
Milazzo		Ostia	Mine Layer	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	1/1/1925	1/1/1927
Millelire	MI	Balilla	Submarine – Oceanic	Odero-Terni-Orlandi (O.T.O.), Muggiano (La Spezia)	10/20/1925	9/19/1927	8/11/1928	Removed from Service	5/15/1941
Minerva	C 42	Gabbiano	Corvette	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	4/2/1942	11/5/1942	2/24/1943
Mitragliere	MT	Soldati 2a Serie	Destroyer	Cantiere Navale Riuniti (C.N.R.) Ancona	10/7/1940	9/28/1941	2/1/1942	Transferred	7/15/1948
Mocenigo	MO	Marcello	Submarine – Oceanic	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	1/19/1937	11/20/1937	8/16/1938	Sunk	3/14/1941
Monsone	MS	Orsa 2a Serie	Torpedo Boat	Navalmeccanica, Castellammare	6/18/1941	6/7/1942	11/28/1942	Sunk	3/1/1943
Morosini	MS	Marcello	Submarine – Oceanic	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	3/2/1937	7/28/1938	11/11/1938	Sunk	8/11/1942
Mozambano		Curtatone	Destroyer	Orlando, Livorno	1/1/1920	1/1/1922	1/1/1923
MS 11		C.R.D.A. 60 ton 1a Serie	Motor Torpedo Boat	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone
MS 41 (ex Orjen)		S1	Motor Torpedo Boat	Lurssen, Vegesak
MS 51		MS 51	Motor Torpedo Boat	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	8/6/1942	10/14/1942	2/15/1943	Scuttled	9/9/1943
MS 12		C.R.D.A. 60 ton 1a Serie	Motor Torpedo Boat	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone
MS 13		C.R.D.A. 60 ton 1a Serie	Motor Torpedo Boat	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone
MS 14		C.R.D.A. 60 ton 1a Serie	Motor Torpedo Boat	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone
MS 15		C.R.D.A. 60 ton 1a Serie	Motor Torpedo Boat	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone
MS 16		C.R.D.A. 60 ton 1a Serie	Motor Torpedo Boat	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone
MS 21		C.R.D.A. 60 ton 1a Serie	Motor Torpedo Boat	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone
MS 22		C.R.D.A. 60 ton 1a Serie	Motor Torpedo Boat	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone
MS 23		C.R.D.A. 60 ton 1a Serie	Motor Torpedo Boat	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone
MS 24		C.R.D.A. 60 ton 1a Serie	Motor Torpedo Boat	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone
MS 25		C.R.D.A. 60 ton 1a Serie	Motor Torpedo Boat	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone
MS 26		C.R.D.A. 60 ton 1a Serie	Motor Torpedo Boat	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone
MS 31		C.R.D.A. 60 ton 1a Serie	Motor Torpedo Boat	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone
MS 32		C.R.D.A. 60 ton 1a Serie	Motor Torpedo Boat	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone
MS 33		C.R.D.A. 60 ton 1a Serie	Motor Torpedo Boat	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone
MS 34		C.R.D.A. 60 ton 1a Serie	Motor Torpedo Boat	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone
MS 35		C.R.D.A. 60 ton 1a Serie	Motor Torpedo Boat	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone
MS 36		C.R.D.A. 60 ton 1a Serie	Motor Torpedo Boat	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone
MS 43		Lürssen “S 2”	Motor Torpedo Boat	Lurssen, Vegesak
MS 44		Lürssen “S 2”	Motor Torpedo Boat	Lurssen, Vegesak
MS 45		Lürssen “S 2”	Motor Torpedo Boat	Lurssen, Vegesak
MS 46		Lürssen “S 2”	Motor Torpedo Boat	Lurssen, Vegesak
MS 51		C.R.D.A. 60 ton 2a Serie	Motor Torpedo Boat	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone
MS 52		C.R.D.A. 60 ton 2a Serie	Motor Torpedo Boat	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone
MS 53		C.R.D.A. 60 ton 2a Serie	Motor Torpedo Boat	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone
MS 54		C.R.D.A. 60 ton 2a Serie	Motor Torpedo Boat	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone
MS 55		C.R.D.A. 60 ton 2a Serie	Motor Torpedo Boat	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone
MS 56		C.R.D.A. 60 ton 2a Serie	Motor Torpedo Boat	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone
MS 61		C.R.D.A. 60 ton 2a Serie	Motor Torpedo Boat	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone
MS 62		C.R.D.A. 60 ton 2a Serie	Motor Torpedo Boat	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone
MS 63		C.R.D.A. 60 ton 2a Serie	Motor Torpedo Boat	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone
MS 64		C.R.D.A. 60 ton 2a Serie	Motor Torpedo Boat	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone
MS 65		C.R.D.A. 60 ton 2a Serie	Motor Torpedo Boat	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone
MS 66		C.R.D.A. 60 ton 2a Serie	Motor Torpedo Boat	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone
MS 71		C.R.D.A. 60 ton 2a Serie	Motor Torpedo Boat	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone
MS 72		C.R.D.A. 60 ton 2a Serie	Motor Torpedo Boat	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone
MS 73		C.R.D.A. 60 ton 2a Serie	Motor Torpedo Boat	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone
MS 74		C.R.D.A. 60 ton 2a Serie	Motor Torpedo Boat	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone
MS 75		C.R.D.A. 60 ton 2a Serie	Motor Torpedo Boat	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone
MS 76		C.R.D.A. 60 ton 2a Serie	Motor Torpedo Boat	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone
Murena		Tritone	Submarine – Coastal	Odero-Terni-Orlandi (O.T.O.), Muggiano (La Spezia)	4/1/1942	4/11/1943	8/25/1943	Scuttled	9/9/1943
Muzio Attendolo		Condottieri tipo Montecuccoli	Cruiser – Light	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	4/10/1933	9/9/1934	8/7/1935	Sunk	12/4/1942
Naiade	NA	Sirena	Submarine – Coastal	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	5/9/1931	3/27/1933	11/16/1933	Scuttled	12/14/1940
Nani	NI	Marcello	Submarine – Oceanic	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	1/15/1937	1/16/1938	9/5/1938	Sunk	1/7/1941
Narvalo	NR	Squalo	Submarine – Medium Range	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	10/17/1928	3/15/1930	12/11/1930	Scuttled	1/14/1943
Nautilo		Tritone	Submarine – Coastal	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	1/3/1942	3/20/1943	7/26/1943	Scuttled	9/9/1943
Nazario Sauro	BH	Marconi	Submarine – Oceanic	Odero-Terni-Orlandi (O.T.O.), Muggiano (La Spezia)	2/15/1939	12/3/1939	4/15/1940	Sunk	7/5/1941
Neghelli	NG	Adua	Submarine – Coastal	Odero-Terni-Orlandi (O.T.O.), Muggiano (La Spezia)	2/25/1937	11/7/1937	2/22/1938	Sunk	1/19/1941
Nembo	NB	Turbine	Destroyer	Cantieri del Tirreno (C.T.), Genova-Riva Trigoso	1/21/1925	1/27/1927	10/24/1927	Sunk	7/20/1940
Nereide	NE	Sirena	Submarine – Coastal	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	5/30/1931	5/25/1933	2/17/1934	Sunk	7/13/1943
Nichelio	NC	Platino	Submarine – Coastal	Odero-Terni-Orlandi (O.T.O.), Muggiano (La Spezia)	7/1/1941	4/12/1942	7/30/1942	Removed from Service	9/8/1943
Nicola Fabrizi	SU	Sauro	Destroyer	Odero-Terni-Orlandi (O.T.O.), Genova-Sestri Ponente	2/9/1924	5/12/1926	9/23/1926	Sunk	4/3/1941
Nicolo’ Zeno		La Masa	Destroyer	Odero-Terni-Orlandi (O.T.O.), Genova-Sestri Ponente
Nicoloso Da Recco	ZE	Navigatori	Destroyer	Cantieri Navali del Quarnaro (C.N.Q.), Fiume	6/5/1927	8/12/1928	5/27/1930	Sunk	9/9/1943
Ondina	ON	Sirena	Submarine – Coastal	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	7/25/1931	12/2/1933	9/19/1934	Scuttled	7/11/1942
Onice	OC	Perla	Submarine – Coastal	Odero-Terni-Orlandi (O.T.O.), Muggiano (La Spezia)	8/27/1935	6/15/1936	9/1/1936	Stricken	9/9/1943
Orione		Orsa 1a Serie	Torpedo Boat	Cantiere Navale Riuniti (C.N.R.) Ancona	4/27/1936	4/21/1937	3/31/1938
Orsa		Orsa 1a Serie	Torpedo Boat	Cantiere Navale Riuniti (C.N.R.) Ancona	4/27/1936	3/21/1937	3/31/1938
Ostia		Ostia	Mine Layer	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	1/1/1925	1/1/1925
Ostia		Ostia	Minelayer	Stabilimento Tecnico Triestino, Trieste
Ostro	OT	Turbine	Destroyer	Ansaldo, Sestri Levante	4/29/1925	1/2/1928	10/9/1928	Sunk	7/21/1940
Otaria	OA	Glauco	Submarine – Oceanic	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	11/17/1933	3/20/1935	10/20/1935	Stricken	9/9/1943
Palestro		Palestro	Destroyer	Orlando, Livorno
Pallade	PD	Spica tipo Alcione	Torpedo Boat	Societa Anonima Bacini e Scali Napoli, Napoli	2/13/1937	12/19/1937	10/5/1938	Sunk	8/4/1943
Pantera	PA	Leone	Destroyer	Ansaldo, Sestri Levante	12/19/1921	10/18/1923	10/28/1924	Scuttled	4/4/1941
Partenope	PN	Spica tipo Alcione	Torpedo Boat	Societa Anonima Bacini e Scali Napoli, Napoli	1/31/1937	2/27/1938	11/26/1938	Sunk	5/4/1943
Pasman (ex Mosor)		Arbe	Minelayer	Kraljevica, Jugoslavia
Pegaso		Orsa 1a Serie	Torpedo Boat	Societa Anonima Bacini e Scali Napoli, Napoli	2/15/1936	12/8/1936	3/30/1938	Scuttled	9/11/1943
Pelagosa		Fasana	Minelayer	Navalmeccanica, Castellammare
Pellegrino Matteucci		Pellegrino Matteucci	Minesweeper	Deutsche Werft, Amburgo (Germany)
Pellegrino Matteucci		Giuseppe Biglieri	Minesweeper	Schiffbau G.S., Bremerhaven
Pellicano	C 14	Gabbiano	Corvette	Societa Anonima Cantieri Cerusa, Genova-Voltri	1/14/1942	2/12/1943	3/15/1943
Perla	PL	Perla	Submarine – Coastal	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	8/31/1935	5/3/1936	7/8/1936	Captured	7/9/1942
Persefone	C 40	Gabbiano	Corvette	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	3/9/1942	9/21/1942	11/28/1942	Scuttled	9/9/1943
Perseo	PS	Spica tipo Perseo	Torpedo Boat	Cantieri Navali del Quarnaro (C.N.Q.), Fiume	11/21/1934	10/9/1935	2/1/1936	Sunk	5/4/1943
Pier Capponi	DR	Navigatori	Destroyer	Cantiere Navale Riuniti (C.N.R.) Ancona	12/14/1927	1/5/1930	5/20/1930	Removed from Service	7/15/1954
Pietro Calvi	CP	Mameli	Submarine – Medium Range	Tosi, Taranto	8/27/1925	6/19/1927	1/20/1929	Sunk	3/31/1941
Platino	PT	Platino	Submarine – Coastal	Odero-Terni-Orlandi (O.T.O.), Muggiano (La Spezia)	11/20/1940	6/1/1941	10/2/1941	Removed from Service
Pleiadi	PL	Spica tipo Alcione	Torpedo Boat	Societa Anonima Bacini e Scali Napoli, Napoli	1/4/1937	9/5/1937	7/4/1938	Sunk	10/14/1941
Pola		Zara	Cruiser – Heavy	Odero-Terni-Orlandi (O.T.O.), Livorno	3/17/1931	12/5/1931	12/21/1932	Sunk	3/28/1941
Polluce	PV	Spica tipo Alcione	Torpedo Boat	Societa Anonima Bacini e Scali Napoli, Napoli	2/13/1937	10/24/1937	8/8/1938	Sunk	9/4/1942
Pomona	C 45	Gabbiano	Corvette	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	5/16/1942	11/18/1942	4/4/1943
Pompeo Magno		Capitani Romani	Cruiser – Light	Odero-Terni-Orlandi (O.T.O.), Livorno	9/23/1939	8/24/1941	6/4/1943	Removed from Service	5/1/1950
Porfido	PO	Platino	Submarine – Coastal	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	11/9/1940	8/23/1941	1/24/1942	Sunk	12/6/1942
Premuda		Premuda	Destroyer	Yarrow, Glasgow
Procellaria	C 12	Gabbiano	Corvette	Societa Anonima Cantieri Cerusa, Genova-Voltri	1/14/1942	9/4/1942	11/29/1942
Procione		Orsa 1a Serie	Torpedo Boat	Societa Anonima Bacini e Scali Napoli, Napoli	2/15/1936	1/31/1937	3/30/1938	Scuttled	9/9/1943
Provana	PR	Marcello	Submarine – Oceanic	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	2/3/1937	3/16/1938	7/25/1938	Sunk	6/17/1940
Pugnale		Ariete	Torpedo Boat	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	1/9/1943	8/1/1943	7/7/1944	Captured	9/9/1943
Quintino Sella	SE	Sella	Destroyer	Pattison, Napoli	10/12/1922	4/25/1925	3/25/1926	Sunk	9/11/1943
R.D.12		R.D.	Minesweeper	Tosi, Taranto
R.D.13		R.D.	Minesweeper	Poli, Chioggia
R.D.16		R.D.	Minesweeper	Navalmeccanica, Castellammare
R.D.17		R.D.	Minesweeper	Navalmeccanica, Castellammare
R.D.18		R.D.	Minesweeper	Navalmeccanica, Castellammare
R.D.20		R.D.	Minesweeper	Navalmeccanica, Castellammare
R.D.21		R.D.	Minesweeper	Navalmeccanica, Castellammare
R.D.22		R.D.	Minesweeper	Navalmeccanica, Castellammare
R.D.23		R.D.	Minesweeper	Navalmeccanica, Castellammare
R.D.24		R.D.	Minesweeper	Navalmeccanica, Castellammare
R.D.25		R.D.	Minesweeper	Navalmeccanica, Castellammare
R.D.26		R.D.	Minesweeper	Navalmeccanica, Castellammare
R.D.27		R.D.	Minesweeper	Tosi, Taranto
R.D.28		R.D.	Minesweeper	Tosi, Taranto
R.D.29		R.D.	Minesweeper	Tosi, Taranto
R.D.30		R.D.	Minesweeper	Tosi, Taranto
R.D.31		R.D.	Minesweeper	Navalmeccanica, Castellammare
R.D.32		R.D.	Minesweeper	Navalmeccanica, Castellammare
R.D.33		R.D.	Minesweeper	Navalmeccanica, Castellammare
R.D.34		R.D.	Minesweeper	Navalmeccanica, Castellammare
R.D.35		R.D.	Minesweeper	Navalmeccanica, Castellammare
R.D.36		R.D.	Minesweeper	Navalmeccanica, Castellammare
R.D.37		R.D.	Minesweeper	Navalmeccanica, Castellammare
R.D.38		R.D.	Minesweeper	Arsenale Navale, Napoli
R.D.39		R.D.	Minesweeper	Tosi, Taranto
R.D.40		R.D.	Minesweeper	Tosi, Taranto
R.D.41		R.D.	Minesweeper	Tosi, Taranto
R.D.42		R.D.	Minesweeper	Tosi, Taranto
R.D.43		R.D.	Minesweeper	Tosi, Taranto
R.D.44		R.D.	Minesweeper	Tosi, Taranto
R.D.55		R.D.	Minesweeper	Migliardi, Savona
R.D.56		R.D.	Minesweeper	Migliardi, Savona
R.D.57		R.D.	Minesweeper	Migliardi, Savona
R.D.58		R.D.58	Minesweeper	Danubius, Fiume
R.D.59		R.D.58	Minesweeper	Danubius, Fiume
R.D.6		R.D.	Minesweeper	Navalmeccanica, Castellammare
R.D.60		R.D.58	Minesweeper	Danubius, Fiume
R.D.7		R.D.	Minesweeper	Tosi, Taranto
R10		R	Submarine – Transport	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	2/24/1943	7/13/1943		Stricken
R11		R	Submarine – Transport	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	3/10/1943	7/6/1944		Stricken
R12		R	Submarine – Transport	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	5/13/1943	9/29/1944		Stricken
R3		R	Submarine – Transport	Tosi, Taranto	3/1/1943	9/7/1946		Stricken
R4		R	Submarine – Transport	Tosi, Taranto	3/1/1943	9/30/1946		Stricken
R5		R	Submarine – Transport	Tosi, Taranto	3/25/1943			Stricken
R6		R	Submarine – Transport	Tosi, Taranto	3/25/1943			Stricken
R7		R	Submarine – Transport	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	3/1/1943	10/31/1943		Stricken
R8		R	Submarine – Transport	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	3/1/1943	12/28/1943		Stricken
R9		R	Submarine – Transport	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	3/6/1943	2/27/1944		Stricken
Raimondo Montecuccoli		Condottieri tipo Montecuccoli	Cruiser – Light	Ansaldo, Sestri Levante	10/1/1931	8/2/1934	6/30/1935		6/1/1964
Reginaldo Giuliani	CV	Calvi	Submarine – Oceanic	Odero-Terni-Orlandi (O.T.O.), Muggiano (La Spezia)	7/20/1932	3/3/1935	10/16/1935	Scuttled	7/15/1942
Remo	RE	R	Submarine – Transport	Tosi, Taranto	7/21/1942	3/21/1943	6/19/1943	Sunk	7/15/1943
Renna	C 24	Gabbiano	Corvette	Odero-Terni-Orlandi (O.T.O.), Livorno	5/31/1942	12/5/1942		Captured	9/9/1943
Rigel		Ariete	Torpedo Boat	Ansaldo, Sestri Levante	7/15/1942	5/22/1943	1/23/1944	Captured	9/9/1943
Roma		Littorio	Battleship	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	9/18/1938	6/9/1940	6/14/1942	Sunk	9/9/1943
Romolo	RO	R	Submarine – Transport	Tosi, Taranto	4/5/1942	3/28/1943	6/19/1943	Sunk	7/18/1943
Rosolino Pilo		Rosolino Pilo	Destroyer	Odero-Terni-Orlandi (O.T.O.), Genova-Sestri Ponente	1/1/1913	1/1/1915	1/1/1915
Rubino	RU	Sirena	Submarine – Coastal	Cantieri Navali del Quarnaro (C.N.Q.), Fiume	9/26/1931	3/29/1933	3/21/1934	Sunk	6/29/1940
Ruggiero Settimo	GN	Liuzzi	Submarine – Oceanic	Tosi, Taranto	3/13/1939	12/3/1939	2/3/1940	Captured	9/8/1943
S 1		S	Submarine – Coastal	Danziger Werft Danzig (Germany)	8/14/1942	3/11/1943	6/26/1943	Captured
S 2		S	Submarine – Coastal	Schichau, Danzig (Germany)	7/15/1942		7/4/1943	Captured
S 3		S	Submarine – Coastal	Schichau, Danzig (Germany)	8/19/1942		7/17/1943	Captured
S 4		S	Submarine – Coastal	Danziger Werft Danzig (Germany)	9/14/1942		7/14/1943	Captured
S 5		S	Submarine – Coastal	Schichau, Danzig (Germany)	8/20/1942		7/31/1943	Captured
S 6		S	Submarine – Coastal	Danziger Werft Danzig (Germany)	10/5/1942	4/22/1943	8/4/1943	Captured
S 7		S	Submarine – Coastal	Schichau, Danzig (Germany)	9/28/1942	3/30/1943	8/14/1943	Captured
S 8		S	Submarine – Coastal	Danziger Werft Danzig (Germany)	10/27/1942		8/25/1943	Captured
S 9		S	Submarine – Coastal	Schichau, Danzig (Germany)	9/29/1942		8/26/1943	Captured
Saetta	SA	Dardo 1a Serie	Destroyer	Cantieri del Tirreno (C.T.), Genova-Riva Trigoso	5/27/1927	1/17/1932	5/10/1932	Sunk	2/3/1943
Sagittario	SG	Spica tipo Perseo	Torpedo Boat	Cantieri Navali del Quarnaro (C.N.Q.), Fiume	11/14/1935	6/21/1936	10/8/1936
Salpa	SA	Argonauta	Submarine – Coastal	Tosi, Taranto	4/23/1930	5/8/1932	12/12/1932	Sunk	6/27/1941
San Giorgio		San Giorgio	Obsolete Ship	Navalmeccanica, Castellammare	7/4/1907	7/27/1908	7/1/1910	Scuttled
San Marco		San Giorgio	Obsolete Ship	Navalmeccanica, Castellammare				Captured	9/9/1943
San Martino		Palestro	Destroyer	Orlando, Livorno
Santarosa	SN	Bandiera	Submarine – Medium Range	Odero-Terni-Orlandi (O.T.O.), Muggiano (La Spezia)	5/1/1928	10/22/1929	7/29/1930	Scuttled	1/20/1943
Santorre Santarosa	SO	Settembrini	Submarine – Medium Range	Tosi, Taranto	4/16/1928	3/29/1931	4/25/1932	Removed from Service	9/9/1943
Scimitarra	C 33	Gabbiano	Corvette	Breda, Venezia	2/24/1942	9/16/1942	5/15/1943
Scipione Africano		Capitani Romani	Cruiser – Light	Odero-Terni-Orlandi (O.T.O.), Livorno	9/28/1939	1/12/1941	4/23/1943	Removed from Service	8/9/1948
Scirè	SR	Adua	Submarine – Coastal	Odero-Terni-Orlandi (O.T.O.), Muggiano (La Spezia)	1/30/1937	1/6/1938	4/25/1938	Sunk	8/10/1942
Scirocco	SC	Maestrale	Destroyer	Cantieri del Tirreno (C.T.), Genova-Riva Trigoso	9/29/1931	4/22/1934	10/21/1934	Wrecked	3/23/1942
Scure	C 62	Gabbiano	Corvette	Breda, Venezia	10/20/1943
Sebenico		Sebenico	Destroyer	Loires, Nantes (France)
Serpente	AU	Argonauta	Submarine – Coastal	Tosi, Taranto	4/23/1930	2/28/1932	11/12/1932	Scuttled	9/12/1943
Settembrini	ST	Settembrini	Submarine – Medium Range	Tosi, Taranto	4/16/1928	7/28/1930	1/25/1932	Sunk	9/9/1943
Sfinge	C 47	Gabbiano	Corvette	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	6/20/1942	9/1/1943	5/12/1943
Sibilla	C 49	Gabbiano	Corvette	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	6/20/1942	3/10/1943	6/5/1943
Simone Schiaffino		Rosolino Pilo	Destroyer	Odero-Terni-Orlandi (O.T.O.), Genova-Sestri Ponente
Sirena	SI	Sirena	Submarine – Coastal	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	5/1/1931	1/26/1933	10/2/1933	Scuttled	9/9/1943
Sirio	SI	Spica tipo Perseo	Torpedo Boat	Cantieri Navali del Quarnaro (C.N.Q.), Fiume	11/12/1934	11/16/1935	3/1/1936
Smeraldo	SM	Sirena	Submarine – Coastal	Tosi, Taranto	5/25/1931	7/23/1933	11/29/1933	Sunk	9/15/1941
Solferino		Palestro	Destroyer	Orlando, Livorno
Solta		Arbe	Minelayer	Kraljevica, Jugoslavia
Spada		Ariete	Torpedo Boat	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	1/9/1943	7/1/1943	2/12/1944	Captured	9/9/1943
Sparide		Tritone	Submarine – Coastal	Odero-Terni-Orlandi (O.T.O.), Muggiano (La Spezia)	4/25/1942	2/21/1943	8/7/1943	Scuttled	9/9/1943
Speri	SP	Mameli	Submarine – Medium Range	Tosi, Taranto	9/28/2025	5/25/1928	8/20/1929	Stricken	2/1/1942
Spica	SP	Spica	Torpedo Boat	Societa Anonima Bacini e Scali Napoli, Napoli	1/14/1942	1/30/1944	9/8/1944	Captured	9/9/1943
Spica		Ariete	Torpedo Boat	Cantieri Navali del Quarnaro (C.N.Q.), Fiume	1/14/1942	1/30/1944	9/8/1944	Captured	9/9/1943
Spigola		Tritone	Submarine – Coastal	Tosi, Taranto	6/10/1943			Stricken
Spingarda	C 36	Gabbiano	Corvette	Breda, Venezia	3/14/1942	3/22/1943		Captured	9/11/1943
Squadrista	SQ	Soldati 2a Serie	Destroyer	Odero-Terni-Orlandi (O.T.O.), Livorno	9/4/1941	9/12/1941		Captured	9/9/1943
Squalo	SQ	Squalo	Submarine – Medium Range	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	10/10/1928	1/15/1930	10/6/1930	Removed from Service	9/9/1943
Stambecco	C 57	Gabbiano	Corvette	Odero-Terni-Orlandi (O.T.O.), Livorno	3/4/1943
Stefano Turr		Stefano Turr	Motor Torpedo Boat	C.M.A., Marina Pisa
Stella Polare		Ariete	Torpedo Boat	Cantieri Navali del Quarnaro (C.N.Q.), Fiume	4/1/1942	7/11/1943	1/15/1944	Captured	9/9/1943
Strale	ST	Dardo 1a Serie	Destroyer	Odero-Terni-Orlandi (O.T.O.), Genova-Sestri Ponente	2/20/1929	3/26/1931	2/6/1932	Wrecked	6/21/1942
Strolaga	C 53	Gabbiano	Corvette	Ansaldo, Sestri Levante	3/15/1943			Captured	9/9/1943
Taranto		Taranto	Obsolete Ship	Wilhelmshaven, (Germany)		8/24/1911	10/9/1912	Scuttled	9/9/1943
Tembien	TE	Adua	Submarine – Coastal	Odero-Terni-Orlandi (O.T.O.), Muggiano (La Spezia)	2/6/1937	2/6/1938	7/1/1938	Sunk	8/2/1941
Tersicore	C 69	Gabbiano	Corvette	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	4/15/1943
Tifone	TF	Orsa 2a Serie	Torpedo Boat	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	6/17/1941	3/31/1942	7/11/1942	Captured	5/7/1943
Tigre	TI	Leone	Destroyer	Ansaldo, Sestri Levante	1/23/1922	8/7/1924	10/10/1924	Scuttled	4/4/1941
Topazio	TP	Sirena	Submarine – Coastal	Cantieri Navali del Quarnaro (C.N.Q.), Fiume	9/26/1931	5/15/1933	4/1/1934	Sunk	9/12/1943
Torricelli	TL	Brin	Submarine – Oceanic	Tosi, Taranto	12/23/1937	3/26/1939	5/7/1939	Sunk	6/23/1940
Toti	TO	Balilla	Submarine – Oceanic	Odero-Terni-Orlandi (O.T.O.), Muggiano (La Spezia)	1/26/2025	2/20/1927	9/20/1928	Stricken	4/2/1943
Trento		Trento	Cruiser – Heavy	Odero-Terni-Orlandi (O.T.O.), Livorno	2/8/1925	10/4/1927	4/3/1929	Sunk	6/15/1942
Tricheco	TR	Squalo	Submarine – Medium Range	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	11/10/1928	9/11/1930	6/23/1931	Sunk	3/18/1942
Trieste		Trento	Cruiser – Heavy	Stabilimento Tecnico Triestino, Trieste	6/22/1925	10/24/1926	12/21/1928	Sunk	4/10/1943
Triglia		Triglia	Minesweeper	Deutsche Werft, Amburgo (Germany)
Tritone	TN	Tritone	Submarine – Coastal	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	5/15/1941	1/3/1942	10/10/1942	Sunk	1/19/1943
Tuffetto	C 51	Gabbiano	Corvette	Ansaldo, Sestri Levante	3/15/1943	8/25/1943	3/3/1944	Captured	9/9/1943
Turbine	TB	Turbine	Destroyer	Odero-Terni-Orlandi (O.T.O.), Genova-Sestri Ponente	3/24/1925	4/21/1927	8/27/1927	Scuttled	9/9/1943
Turchese	TC	Perla	Submarine – Coastal	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	9/27/1935	7/19/1936	9/21/1936	Stricken	9/9/1943
Uarsciek	UR	Adua	Submarine – Coastal	Tosi, Taranto	12/2/1936	9/19/1937	12/4/1937	Sunk	12/15/1942
Uebi Scebeli	US	Adua	Submarine – Coastal	Tosi, Taranto	1/12/1937	10/3/1937	12/21/1937	Sunk	6/29/1940
Ugliano (ex Marjan)		Arbe	Minelayer	Kraljevica, Jugoslavia
Ugolino Vivaldi	VI	Navigatori	Destroyer	Odero-Terni-Orlandi (O.T.O.), Genova-Sestri Ponente	5/16/1927	1/9/1929	3/6/1930	Sunk	7/10/1943
Uragano	UR	Orsa 2a Serie	Torpedo Boat	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	6/14/1941	5/3/1942	9/26/1942	Sunk	2/3/1943
Urania	C 65	Gabbiano	Corvette	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	10/1/1942	4/21/1943	8/1/1943
VAS 201		Baglietto 68 ton 1a serie	Anti Submarine Patrol Vessel	Baglietto, Varazze
VAS 202		Baglietto 68 ton 1a serie	Anti Submarine Patrol Vessel	Baglietto, Varazze
VAS 203		Baglietto 68 ton 1a serie	Anti Submarine Patrol Vessel	Baglietto, Varazze
VAS 204		Baglietto 68 ton 1a serie	Anti Submarine Patrol Vessel	Baglietto, Varazze
VAS 205		Baglietto 68 ton 1a serie	Anti Submarine Patrol Vessel	Baglietto, Varazze
VAS 206		Baglietto 68 ton 1a serie	Anti Submarine Patrol Vessel	Baglietto, Varazze
VAS 207		Baglietto 68 ton 1a serie	Anti Submarine Patrol Vessel	Baglietto, Varazze
VAS 208		Baglietto 68 ton 1a serie	Anti Submarine Patrol Vessel	Baglietto, Varazze
VAS 209		Baglietto 68 ton 1a serie	Anti Submarine Patrol Vessel	Picchiotto, Limite d’Arno
VAS 210		Baglietto 68 ton 1a serie	Anti Submarine Patrol Vessel	Picchiotto, Limite d’Arno
VAS 211		Baglietto 68 ton 1a serie	Anti Submarine Patrol Vessel	Picchiotto, Limite d’Arno
VAS 212		Baglietto 68 ton 1a serie	Anti Submarine Patrol Vessel	Picchiotto, Limite d’Arno
VAS 213		Baglietto 68 ton 1a serie	Anti Submarine Patrol Vessel	Picchiotto, Limite d’Arno
VAS 214		Baglietto 68 ton 1a serie	Anti Submarine Patrol Vessel	Picchiotto, Limite d’Arno
VAS 215		Baglietto 68 ton 1a serie	Anti Submarine Patrol Vessel	Navalmeccanica, Castellammare
VAS 216		Baglietto 68 ton 1a serie	Anti Submarine Patrol Vessel	Navalmeccanica, Castellammare
VAS 217		Baglietto 68 ton 1a serie	Anti Submarine Patrol Vessel	Navalmeccanica, Castellammare
VAS 218		Baglietto 68 ton 1a serie	Anti Submarine Patrol Vessel	Navalmeccanica, Castellammare
VAS 219		Baglietto 68 ton 1a serie	Anti Submarine Patrol Vessel	Navalmeccanica, Castellammare
VAS 220		Baglietto 68 ton 1a serie	Anti Submarine Patrol Vessel	Navalmeccanica, Castellammare
VAS 221		Baglietto 68 ton 1a serie	Anti Submarine Patrol Vessel	Soriente, Salerno
VAS 222		Baglietto 68 ton 1a serie	Anti Submarine Patrol Vessel	Soriente, Salerno
VAS 223		Baglietto 68 ton 1a serie	Anti Submarine Patrol Vessel	Soriente, Salerno
VAS 224		Baglietto 68 ton 1a serie	Anti Submarine Patrol Vessel	Soriente, Salerno
VAS 225		Baglietto 68 ton 1a serie	Anti Submarine Patrol Vessel	Celli, Venezia
VAS 226		Baglietto 68 ton 1a serie	Anti Submarine Patrol Vessel	Celli, Venezia
VAS 227		Baglietto 68 ton 1a serie	Anti Submarine Patrol Vessel	Celli, Venezia
VAS 228		Baglietto 68 ton 1a serie	Anti Submarine Patrol Vessel	Celli, Venezia
VAS 229		Baglietto 68 ton 1a serie	Anti Submarine Patrol Vessel	Celli, Venezia
VAS 230		Baglietto 68 ton 1a serie	Anti Submarine Patrol Vessel	Celli, Venezia
VAS 231		Baglietto 68 ton 2a serie	Anti Submarine Patrol Vessel	Baglietto, Varazze
VAS 232		Baglietto 68 ton 2a serie	Anti Submarine Patrol Vessel	Baglietto, Varazze
VAS 233		Baglietto 68 ton 2a serie	Anti Submarine Patrol Vessel	Baglietto, Varazze
VAS 234		Baglietto 68 ton 2a serie	Anti Submarine Patrol Vessel	Baglietto, Varazze
VAS 235		Baglietto 68 ton 2a serie	Anti Submarine Patrol Vessel	Baglietto, Varazze
VAS 236		Baglietto 68 ton 2a serie	Anti Submarine Patrol Vessel	Baglietto, Varazze
VAS 237		Baglietto 68 ton 2a serie	Anti Submarine Patrol Vessel	Costaguta, Genova-Voltri
VAS 238		Baglietto 68 ton 2a serie	Anti Submarine Patrol Vessel	Costaguta, Genova-Voltri
VAS 239		Baglietto 68 ton 2a serie	Anti Submarine Patrol Vessel	Navalmeccanica, Castellammare
VAS 240		Baglietto 68 ton 2a serie	Anti Submarine Patrol Vessel	Navalmeccanica, Castellammare
VAS 241		Baglietto 68 ton 2a serie	Anti Submarine Patrol Vessel	Navalmeccanica, Castellammare
VAS 242		Baglietto 68 ton 2a serie	Anti Submarine Patrol Vessel	Navalmeccanica, Castellammare
VAS 243		Baglietto 68 ton 2a serie	Anti Submarine Patrol Vessel	Soriente, Salerno
VAS 244		Baglietto 68 ton 2a serie	Anti Submarine Patrol Vessel	Soriente, Salerno
VAS 245		Baglietto 68 ton 2a serie	Anti Submarine Patrol Vessel	Soriente, Salerno
VAS 246		Baglietto 68 ton 2a serie	Anti Submarine Patrol Vessel	Celli, Venezia
VAS 247		Baglietto 68 ton 2a serie	Anti Submarine Patrol Vessel	Celli, Venezia
VAS 248		Baglietto 68 ton 2a serie	Anti Submarine Patrol Vessel	Celli, Venezia
VAS 301		VAS 301	Anti Submarine Patrol Vessel	Ansaldo, Cerusa Voltri
VAS 302		VAS 301	Anti Submarine Patrol Vessel	Ansaldo, Cerusa Voltri
VAS 303		VAS 301	Anti Submarine Patrol Vessel	Ansaldo, Cerusa Voltri
VAS 304		VAS 301	Anti Submarine Patrol Vessel	Ansaldo, Cerusa Voltri
VAS 305		VAS 305	Anti Submarine Patrol Vessel	Ansaldo, Cerusa Voltri
VAS 306		VAS 305	Anti Submarine Patrol Vessel	Ansaldo, Cerusa Voltri
VAS 307		VAS 305	Anti Submarine Patrol Vessel	Ansaldo, Cerusa Voltri
VAS 308		VAS 305	Anti Submarine Patrol Vessel	Ansaldo, Cerusa Voltri
VAS 309		VAS 305	Anti Submarine Patrol Vessel	Ansaldo, Cerusa Voltri
VAS 310		VAS 305	Anti Submarine Patrol Vessel	Ansaldo, Cerusa Voltri
VAS 311		VAS 305	Anti Submarine Patrol Vessel	Ansaldo, Cerusa Voltri
VAS 312		VAS 305	Anti Submarine Patrol Vessel	Ansaldo, Cerusa Voltri
Vedetta		Vedetta	Minesweeper	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone
Vega	VG	Spica tipo Perseo	Torpedo Boat	Cantieri Navali del Quarnaro (C.N.Q.), Fiume	11/14/1935	6/21/1936	10/12/1936	Sunk	1/10/1941
Velella	VL	Argo	Submarine – Coastal	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	12/9/1935	12/18/1936	8/31/1937	Sunk	9/7/1943
Velite	VL	Soldati 2a Serie	Destroyer	Odero-Terni-Orlandi (O.T.O.), Livorno	4/19/1941	8/31/1941	8/31/1942	Transferred	7/24/1948
Veniero	VN	Marcello	Submarine – Oceanic	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	1/23/1937	2/14/1938	6/5/1938	Sunk	6/7/1942
Vespa	C 26	Gabbiano	Corvette	Navalmeccanica, Castellammare	5/4/1942	11/22/1942	9/2/1943	Captured	9/11/1943
Vesuvio		Etna	Cruiser – Light	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	8/26/1939	8/6/1941
Vettor Pisani	PN	Pisani	Submarine – Medium Range	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	12/3/1925	11/24/1927	6/16/1929	Removed from Service	9/9/1943
Vigilante		Vedetta	Minesweeper	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone
Vincenzo G. Orsini		Sirtori	Destroyer	Odero-Terni-Orlandi (O.T.O.), Genova-Sestri Ponente
Vincenzo Gioberti	GB	Oriani	Destroyer	Odero-Terni-Orlandi (O.T.O.), Livorno	1/2/1936	7/19/1936	10/27/1937	Sunk	8/9/1943
Vittorio Alfieri	AL	Oriani	Destroyer	Odero-Terni-Orlandi (O.T.O.), Livorno	4/4/1936	12/20/1936	12/1/1937	Sunk	4/28/1941
Vittorio Veneto		Littorio	Battleship	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	10/28/1934	7/25/1937	4/28/1940	Removed from Service	2/1/1948
Volframio	VO	Platino	Submarine – Coastal	Tosi, Taranto	12/16/1940	11/9/1941	2/15/1942	Scuttled	9/9/1943
Vortice	VR	Tritone	Submarine – Coastal	Cantieri Riuniti dell’Adriatico (C.R.D.A.), Monfalcone	1/3/1942	2/23/1943	6/21/1943	Removed from Service	9/9/1943
Zaffiro	ZA	Sirena	Submarine – Coastal	Odero-Terni-Orlandi (O.T.O.), Muggiano (La Spezia)	9/16/1931	6/28/1933	6/4/1934	Sunk	6/9/1942
Zagaglia	C 64	Gabbiano	Corvette	Breda, Venezia	2/1/1944
Zara		Zara	Cruiser – Heavy	Odero-Terni-Orlandi (O.T.O.), Muggiano (La Spezia)	7/4/1929	4/27/1930	10/20/1931	Sunk	3/28/1941
Zeffiro	ZF	Turbine	Destroyer	Ansaldo, Sestri Levante	4/29/1924	5/27/1927	5/25/1928	Sunk	7/5/1940
Zoea	ZE	Foca	Submarine – Medium Range	Tosi, Taranto	3/3/1936	12/5/1937	2/12/1938	Stricken	9/9/1943