Marceline Loridan-Ivens (née Rozenberg; 19 March 1928 – 18 September 2018) was a French writer and film director. Her memoir But You Did Not Come Back details her time in Auschwitz-Birkenau. She was married to Joris Ivens.

Marceline Rozenberg was born to Polish Jewish parents who emigrated to France in 1919. At the beginning of World War II, her family settled in Vaucluse, where she joined the French Resistance. She and her father, Szlama, were captured by the Gestapo and deported to Auschwitz-Birkenau by Convoy 71 on 13 April 1944, along with Simone Veil and Anne-Lise Stern, then to Bergen-Belsen, and eventually to Theresienstadt. The camp was liberated on 10 May 1945 by the Red Army.