Jack Milne (14 June 1907 in Buffalo, New York, United States – 15 December 1995 in Pasadena, California, United States) was an international Speedway rider.
He became the first American to win a motorcycling world championship when he won the Speedway World Championship in 1937 (defeating brother Cordy Milne into third place).
Milne finished as runner-up in the World Championship in 1938.