German Battleship SMS Oldenburg

SMS Oldenburg was a Helgoland class dreadnought battleship of the Imperial German Navy along with her three sister ships, Helgoland, Ostfriesland, and Thüringen. She was launched on 30 June 1910 and was commissioned into the fleet on 1 May 1912.

During World War One, she saw action at Jutland, receiving damage during the night action against British destroyers.

The ship also saw action in the Baltic Sea against the Imperial Russian Navy. She was present during the unsuccessful first incursion into the Gulf of Riga in August 1915, though she saw no combat during the operation.

After the German collapse in November 1918, most of the High Seas Fleet was interned and then scuttled in Scapa Flow during the peace negotiations. The four Helgoland-class ships were allowed to remain in Germany but eventually ceded to the victorious Allied powers as war reparations; Oldenburg was given to Japan, which sold the vessel to a British ship breaking firm in 1920. She was broken up for scrap in Dordrecht in 1921.