Douglas Ivan Hepburn was a Canadian strongman and weightlifter. He won weightlifting gold medals in the 1953 World Weightlifting Championships as well as the 1954 British Empire Games in the heavyweight division. He is also known as the first man to bench press 400, 450, 500, and 550 pounds (raw). During the 1950s he was publicly known as the "world's strongest man" for his many feats of strength. Hepburn has been inducted into the Canadian Olympic Hall of Fame (1953), Canada's Sports Hall of Fame (1955), and the B.C. Sports Hall of Fame (1966).

A strongman is someone who exhibits strength through strength athletics. Strength athletics, also known as strongman competitions, are composed of a variety of events in which competitors have to move the highest weights possible, the winner being the one having the highest tally across all events. In the 19th century, the term strongman referred to an exhibitor of strength or similar circus performers who performed feats of strength.