Alexander Marinesko, Ukrainian-Russian lieutenant (d. 1963)

Alexander Ivanovich Marinesko (Russian: Александр Иванович Маринеско, Ukrainian: Олександр Іванович Марiнеско, Romanian: Alexandru Marinescu; 15 January [O.S. 2 January] 1913 – 25 November 1963) was a Soviet naval officer and, during World War II, the captain of the submarine S-13 which sank the German military transport ship Wilhelm Gustloff. The most successful Soviet submarine commander in terms of gross register tonnage (GRT) sunk, with 42,000 GRT to his name, he was posthumously awarded the title Hero of the Soviet Union in 1990.