Stanisław Leon Kulczyński (9 May 1895 – 12 July 1975) was a Polish botanist and politician. Son of Władysław Kulczyński the zoologist. Professor of Lwów University (in the Second Polish Republic, its rector from 1936). He resigned his position at the university in 1938 in protest of the institution of ghetto benches, writing to the Minister of Education that "if one destroys a power plant, it is dark at once, but if one destroys the Universities, it is dark fifty years hence." Member of the Polish Secret State, he took part in underground education in Poland during World War II. After the war, when Lwów was annexed by the Soviet Union, he moved to "Regained Territories" (Wrocław), where he became active in the Wrocław University and Wrocław Politechnic. He joined the Stronnictwo Demokratyc