The Russian monitor Admiral Lazarev was the name ship of her class of monitors built for the Imperial Russian Navy in the late 1860s. She was assigned to the Baltic Fleet upon completion and remained there for her entire career. Aside from one accidental collision in 1871, her service was uneventful. The ship was reclassified as coast-defense ironclad in 1892 and often served as a training ship. There was an unsuccessful proposal to convert her into an aircraft carrier in 1910. Admiral Lazarev was stricken from the Navy List in 1907 and sold for scrap in 1912. She sank while under tow to Germany later that year.