WThe Bistrița class was a group of three small coastguard cruisers of the Romanian Navy. They served from 1888 until at least 1949.
WThe Căpitan Romano Mihail-class was a group of three armored motor launches of the Romanian Navy which served during the First World War and the Second World War.
WNMS Constanța was a submarine tender of the Romanian Navy. She was commissioned in 1931 and fought in the Second World War, being scrapped in 1977.
WE-boat was the Western Allies' designation for the fast attack craft of the Kriegsmarine during World War II; E-boat could refer to a patrol craft from an armed motorboat to a large Torpedoboot.
WNMS Mihail Kogălniceanu was a monitor of the Romanian Navy. She saw service in both world wars, being the most successful vessel in her class of four ships. Like her three sisters, she was initially built as a river monitor, but in early 1918, she was converted to a sea-going monitor. During the Second Balkan war, she supported the Romanian crossing of the Danube into Bulgaria. During World War I, she carried out numerous bombardments against the Central Powers forces advancing along the shore of the Danube and carried out the last action of the Romanian Navy before the 11 November 1918 armistice. She later fought successfully against Bolshevik naval forces during the early months of the Russian Civil War, helping secure the Budjak region. During the interwar period, she contributed to the suppression of the Tatarbunary Uprising and was rearmed with longer main guns towards the end of the 1930s. During World War II, she fought several engagements against the Soviet Navy in the first month of the Eastern Front, but was ultimately sunk by Soviet aircraft shortly after Romania ceased hostilities against the Soviet Union, on 24 August 1944.
WNMS Mircea was the second ship of the Romanian Navy's Black Sea Fleet, one of the Fleet's six founding warships and the only one of these vessels to remain in service until the Second World War. She was sunk during an air raid in April 1944.
WThe Şoimul class was a pair of spar torpedo boats of the Romanian Navy. They were built in 1882 and served until the end of the 1940s.
WNMS Sublocotenent Ghiculescu was a specialized ASW gunboat of the Romanian Navy. Initially built as a French warship in late World War I, she was purchased by Romania in 1920 and fought during World War II, sinking two submarines and one motor torpedo boat. After 1 year of Soviet service, she was returned to Romania and served as a survey vessel until 2002.