Leonid Aleksandrovich Kmit (born Aleksei Aleksandrovich Kmita; ; 9 March 1908 – 11 March 1982) was a Soviet and Russian actor. In 1931 he graduated from Saint Petersburg State Theatre Arts Academy (SPbGATI), where he studied in the acting class of Yevgeny Chervyakov. In 1936 he was invited to join the Russian Army Theatre's company. In 1957 he became an actor of the Screen Actors Theater in Moscow.
Kmit performed in more than thirty films from 1929 to 1982. He is best known for his performance as Petka in Chapaev.