Sławomir Maciej Bittner (codename: Maciek, Kajman Wojak; born 21 July 1923, Warsaw - died 28 February 1944, Warsaw, Poland) was a Polish scoutmaster (podharcmistrz) and second lieutenant of the Armia Krajowa. Arrested on 18 February 1944 by the Gestapo, he was killed, probably shot to death, several weeks later on 28 February at Pawiak prison. He was 20 years old.