Siarhei Vosipavich Prytytski[a] (1 February 1913 – 13 June 1971)[2] was a Belarusian Soviet communist activist, politician, and partisan commander.

[3] Prytytski was born on 1 February 1913, in Harkawicze (Belarusian: Гаркавічы) in the Polish-Belarusian borderlands, then part of the Russian Empire,[2] as the third son of a school watchman.

[4] In 1931 Prytytski became Secretary of the youth branch (Komsomol) of the illegal Communist Party of West Belarus in Krynki in the Second Polish Republic.

The death sentence provoked wide international protest in West Belarus, Poland, France, Czechoslovakia and the United States.

[6] After the reunification of West Belarus with the Belarusian SSR, in late 1939 Prytytski was made deputy head of the executive committee of the newly established Belastok Region.

[5] After the end of the Second World War, Prytytski became one of the most successful Soviet statesman from the ranks of the former West Belarusian pro-Soviet activists.