This is a list of destroyers of the Regia Marina and Marina Militare, sorted by era and class.
The Regia Marina (RM) or Royal Italian Navy was the navy of the Kingdom of Italy from 1861 to 1946. In 1946, with the birth of the Italian Republic, the Regia Marina changed its name to Marina Militare.
The Torpedoboot Ausland were small destroyers or large torpedo boats captured by Nazi Germany and incorporated into the Kriegsmarine. They were assigned a number beginning with TA.
The Ciclone class were a group of torpedo boats or destroyer escorts built for the Italian Navy which fought in the Second World War. They were modified, slightly heavier, versions of the previous Orsa class, with improved stability and heavier anti-submarine armament. These ships were built as part of the Italian war mobilization programme and completed in 1942–43.
Audace was a destroyer of the Italian Regia Marina. Originally, the Imperial Japanese Navy ordered her as the Urakaze-classKawakaze, but the Japanese sold her to the Kingdom of Italy in 1916 while she was under construction. Commissioned in 1917, she played an active role in the Adriatic campaign of World War I. During the interwar period, she operated in the Adriatic, Aegean, Mediterranean, and Red seas and was reclassified as a torpedo boat in 1929.
Insidioso was an Italian Indomito-class destroyer. Commissioned into service in the Italian Regia Marina in 1914, she served in World War I, playing an active role in the Adriatic campaign and seeing action in the Battle of the Strait of Otranto in 1917. Reclassified as a torpedo boat in 1929, she was stricken in 1938. Reinstated in 1941, she was captured by Nazi German forces in 1943 during World War II. She then served in the German Kriegsmarine as TA21 until she was sunk in 1944.
Audace was the lead ship of the Audace-class destroyers of the Italian Regia Marina. Commissioned in 1914, she served during World War I, participating in the Adriatic campaign and operating as a convoy escort until she sank after a collision in 1916.
Animoso was the second and final Audace-class destroyer of the Italian Regia Marina. Commissioned in 1914, she played an active role in the Adriatic campaign of World War I. Badly damaged by an accidental explosion in 1921, she was stricken in 1923.
Ardito was the lead ship of the Italian Ardito-class destroyers. Commissioned into service in the Italian Regia Marina in 1913, she served in World War I, playing an active role in the Adriatic campaign. Reclassified as a torpedo boat in 1929, she was discarded in 1931.
Ardente was the second and final unit of the Italian Ardito-class destroyers. Commissioned into service in the Italian Regia Marina in 1913, she served in World War I, playing an active role in the Adriatic campaign. Reclassified as a torpedo boat in 1929, she was discarded in 1937.
Giuseppe Sirtori was the lead ship of the Giuseppe Sirtori-class destroyers. Commissioned into service in the Italian Regia Marina in 1916, she served during World War I, participating in the Adriatic campaign. During the interwar period, she took part in operations related to the Corfu incident in 1923 and was reclassified as a torpedo boat in 1929. During World War II, she took part in the Mediterranean campaign and later the Adriatic campaign until she was scuttled in 1943.
Impavido was an Italian Indomito-class destroyer. Commissioned into service in the Italian Regia Marina in 1913, she served in World War I, playing an active role in the Adriatic campaign and seeing action in the Battle of the Strait of Otranto. Reclassified as a torpedo boat in 1929, she was stricken in 1937.
Impetuoso was an Italian Indomito-class destroyer. Commissioned into service in the Italian Regia Marina in 1914, she served in World War I, playing an active role in the Adriatic campaign until she was sunk in 1916.
Intrepido was an Italian Indomito-class destroyer. Commissioned into service in the Italian Regia Marina in 1913, she served in World War I, playing an active role in the Adriatic campaign until she was sunk in 1915.
Irrequieto was an Italian Indomito-class destroyer. Commissioned into service in the Italian Regia Marina in 1913, she served in World War I, playing an active role in the Adriatic campaign. Reclassified as a torpedo boat in 1929, she was stricken in 1937.
Indomito was an Italian Indomito-class destroyer. Commissioned into service in the Italian Regia Marina in 1913, she served in World War I, playing an active role in the Adriatic campaign and seeing action in the Battle of the Strait of Otranto in 1917. Reclassified as a torpedo boat in 1929, she was stricken in 1937 and subsequently scrapped.
Euro was an Italian Lampo-class destroyer. Commissioned into service in the Italian Regia Marina in 1901, she served in the Italo-Turkish War and World War I. Reclassified as a torpedo boat in 1921 and then used as a target ship, she was renamed Strale in September 1924 and stricken in November 1924.
Strale ("Javelin") was an Italian Lampo-class destroyer. Commissioned into service in the Italian Regia Marina in 1901, she served in the Italo-Turkish War and World War I. She was stricken in 1924.
Freccia ("Arrow") was an Italian Lampo-class destroyer. Commissioned into service in the Italian Regia Marina in 1902, she served in the Italo-Turkish War, during which she was wrecked in 1911.
Aquilone was an Italian Nembo-class destroyer. Commissioned into service in the Italian Regia Marina in 1903, she served in the Italo-Turkish War and World War I, playing an active role in the Adriatic campaign. Reclassified as a torpedo boat in 1921, she was stricken in 1923.
Garibaldino was a Soldato-class ("Soldier"-class) destroyer of the Italian Regia Marina. Commissioned in 1910, she served in the Italo-Turkish War and World War I. During the latter conflict she sank after a collision in 1918.