Leon Felhendler was a Polish resistance fighter known for his role in organizing the 1943 prisoner uprising at Sobibor extermination camp together with Alexander Pechersky.

Jewish resistance under Nazi rule took various forms of organized underground activities conducted against German occupation regimes in Europe by Jews during World War II. According to historian Yehuda Bauer, Jewish resistance was defined as actions that were taken against all laws and actions acted by Germans. The term is particularly connected with the Holocaust and includes a multitude of different social responses by those oppressed, as well as both passive and armed resistance conducted by Jews themselves.