Zofia Posmysz (born in Krakow in 1923) is a Polish writer. Arrested by the Nazis in 1942, she was sent to the Auschwitz-Birkenau concentration camp and then to the women’s concentration camp in Ravensbrück.
After World War II she moved in 1945 to Warsaw, where she graduated in Polish language and literature from Warsaw University. She worked for many years for Polish Radio.
Zofia Posmysz became famous in Poland after the broadcast of her radio play Pasażerka z kabiny 45 (Passenger from Cabin 45). This radio play served as the basis for a television play and a motion picture by Andrzej Munk. The novel Pasażerka (The Passenger) was published in 1962.