Emil Stanisław Rappaport (8 July 1877 – 10 August 1965) was a Polish lawyer of Jewish descent. He was a specialist in criminal law and a founder of the doctrine of international criminal law. In 1930, he was awarded the Order of Polonia Restituta Commander's Cross with Star, Poland's second highest civilian state award. He was the son of Feliks Rappaport and Justyna Bauerertz.
