This is a list of cruisers operated by the Romanian Navy since its founding in 1860.
Coastguard cruisers
These vessels were essentially large border patrol boats armed with multiple light guns. Five such warships were operated by the Romanian Navy, from 1873 until 1968. The first was named Fulgerul, officially commissioned in 1874. She was followed by the larger Grivița in 1880, and finally by the Bistrița-class of three vessels in 1888.
Fulgerul
This 85-ton gunboat was the first purpose-built, sea-going warship of the Romanian Navy. She was built in Toulon in 1873 and commissioned in 1874, upon arriving in Romania. Initially, she served in her intended role as a gunboat, being armed with a single 87 mm Krupp gun. As of World War I, however, her armament was changed to one 57 mm gun and one 37 mm gun. She had a top speed of 7.5 knots and a crew of 18. She survived World War II and was only scrapped in 1968.
Grivița
This vessel was the first warship acquired by Romania after its 1877-1878 war of independence. She was built in 1880 by Stabilimento Tecnico Triestino in Austria-Hungary, being the last warship purchased by Romania before the country's conversion to a Kingdom in 1881. She measured 60.5 meters in length, with a beam of 5.2 meters and a draught of 1.8 meters. She displaced 110 tons standard and 128 tons with a full load of coal, had a crew of 30 men and a top speed of 9 knots, generated by a 180 hp steam engine. She was armed with two 57 mm Nordenfelt guns and two 37 mm 1-pounder guns.
Bistrița-class
The three 96-ton vessels of this class were named Bistrița, Oltul and Siretul, all bearing the names of Romanian rivers. These vessels measured 30.5 meters in length, with a beam of 4.1 meters and a draught of 1.7 meters. They were built in 1888 by Thames Iron Works in London and each vessel was armed with one 57 mm gun and one 37 mm gun. Crewed by 30 men each, they had a top speed of 13 knots generated by 380 hp steam propulsion, carrying a maximum of 12 tons of coal. All three vessels of this class saw service during the Second World War as river gunboats, being still in service as of 1949.
Protected cruisers
Romania had only one protected cruiser, named Elisabeta. She was built by Armstrong Whitworth at Elswick in the United Kingdom in 1887-1888 and rebuilt in 1905. She was armed with four 120 mm naval guns, four 75 mm dual purpose (naval/AA guns) and four 356 mm torpedo tubes. She measured 73 meters in length, with a beam of 10.21 meters and a draught of 3.66 meters. Her displacement amounted to 1,380 tons. She was protected by 44 mm of steel at the ends of the deck and 89 mm amidships. She had a top speed of 17 knots and a crew of 150. Elisabeta was still in use as a barracks ship as of 1929. Notably, she was among the first warships designed by the British naval architect Philip Watts, who would later design the revolutionary battleship HMS Dreadnought.
Scout cruisers
Paper projects
In 1912, based on the 1912 Romanian naval program which envisioned 6 light cruisers and 12 large destroyers, Vickers offered two protected scout cruiser designs to Romania. The first design, named Design 634, was to displace 3,100 tons and have a top speed of 27 knots. Armament was to consist of six 152 mm guns, six 102 mm guns and two 533 mm deck-mounted torpedo tubes. The second proposal, known as Design 635, was heavier and slower. Designed displacement was to amount to 3,200 tons with a top speed of 24 knots. The six 152 mm guns envisioned by the previous design were replaced by two 190 mm guns. None of these were accepted by Romania, however.