Kazimierz Petrusewicz

Kazimierz Petrusewicz (23 March 1906 in Minsk – 26 March 1982 in Warsaw) was a Polish communist activist, member of the Polish People's Republic government, biologist, full member of the Polish Academy of Sciences, professor at the University of Warsaw, member of the Polish Workers' Party/Polish United Workers' Party during 1944–1982.

In 1947 he was awarded the Commander's Cross of the Order of Polonia Restituta.

He was the son of socialist revolutionary Kazimierz Petrusewicz, Sr (1872–1949).