Gerhard "George" Lachmann Mosse was an American historian, who emigrated from Nazi Germany first to Great Britain and then to the United States. He was professor of history at the University of Iowa, the University of Wisconsin–Madison, and also in Israel, at the Hebrew University of Jerusalem. Best known for his studies of Nazism, he authored more than 25 books on topics as diverse as constitutional history, Protestant theology, and the history of masculinity. In 1966, he and Walter Laqueur founded The Journal of Contemporary History, which they co-edited.