The Petropavlovsk class, sometimes referred to as the Poltava class, was a group of three pre-dreadnought battleships built for the Imperial Russian Navy during the 1890s. They were transferred to the Pacific Squadron shortly after their completion in 1899–1900 and were based at Port Arthur before the start of the Russo-Japanese War of 1904–1905. All three ships participated in the Battle of Port Arthur on the second day of the war. Petropavlovsk sank two months after the war began after striking one or more mines laid by the Japanese. Her two sister ships, Sevastopol and Poltava, took part in the Battle of the Yellow Sea in August 1904 and were sunk or scuttled during the final stages of the siege of Port Arthur in early 1905.

Pre-dreadnought battleships were sea-going battleships built from the mid- to late- 1880s to the early 1900s. Their designs were conceived before the appearance of HMS Dreadnought in 1906 and their classification as "pre-dreadnought" is retrospectively applied. In their day, they were simply known as "battleships" or else more rank-specific terms such as "first-class battleship" and so forth. The pre-dreadnought battleships were the pre-eminent warships of their time and replaced the ironclad battleships of the 1870s and 1880s.