Erwin Leiser (May 16, 1923 – August 22, 1996) was a German-born 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 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.
In 1967, he was a member of the jury at the Venice Film Festival.
Leiser published the book Nazi Cinema in 1974.
Erwin Leiser was buried in Zürich's Israelitischer Friedhof Oberer Friesenberg.