Julian Kean Roosevelt (November 14, 1924 – March 1986) was an American banker and Olympic yachtsman. A member of the Roosevelt family and a first cousin twice removed of U.S. President Theodore Roosevelt, he was the son of George Emlen Roosevelt. He attended Harvard University, where he participated in crew. A 1948 Olympian and a gold medalist in the 1952 Olympics in the 6-meter class, he was later a member of the International Olympic Committee who advocated removing political motives from the games, criticizing the U.S. boycott of the 1980 Moscow Olympics and the banning of South African athletes.
He was twice married, first to Florence Madeleine Graham, and second to Margaret Fay Schantz.