Zygmunt Witymir Bieńkowski (2 May 1913 Warsaw – 15 August 1979) was a Polish pilot and a writer of many articles and poems. His 303 squadron diary is held in the Polish Museum and Sikorski Institute in London. Zygmunt Witymir Bieńkowski was the son of Leopold Bieńkowski (1883–1942) and Zofia Braun (1891–1943). His father was a Polish Member of Parliament from 1922 to 1928. Both his parents died in Soviet Gulag camps. Released by American forces, by the end of the war he was a wing commander. During the war, he flew 74 sorties, claiming one Bf 109 destroyed and a Fw 190 damaged.