Erwin Leiser was a German-born Swedish director, writer, and actor.
Born and raised in Berlin, he fled to Sweden at the age of 15 to escape the Nazi Party. He graduated from the University of Lund and worked as a journalist and a drama and literary critic. He lived in Sweden 1938–1966.
He is best known for his documentary Mein Kampf, based on Nazi footage from secret archives and depicting Nazi atrocities. He subsequently made other documentaries both on Nazi Germany and other topics.