Jack Leswick (January 1, 1910 – August 4, 1934) was a Canadian ice hockey centre who played 37 games in the National Hockey League with the Chicago Black Hawks during the 1933–34 season. The rest of his career, which lasted from 1929 to 1934, was mainly spent in the American Hockey Association. Leswick died in the summer of 1934, shortly after Chicago won the Stanley Cup.