Aleksandr Stepanovich Viktorenko (Александр Степанович Викторенко) is a Soviet cosmonaut. He was born in Olginka, North-Kazakhstan Oblast, Kazakh SSR on March 29, 1947. He is married with two children.
He was selected as a cosmonaut on March 23, 1978, and retired on May 30, 1997. During his active career he had been Commander of Soyuz TM-3, Soyuz TM-8, Soyuz TM-14 and Soyuz TM-20. He has spent a total of 489 days in space.