Gary Jay Gubner (born December 1, 1942) is a retired American heavyweight weightlifter, shot putter, and discus thrower. He had his best results in weightlifting, winning two world championship medals in 1962 and 1965 and placing fourth at the 1964 Summer Olympics. He also attempted to qualify for the 1964 Olympics in throwing events, and finished fifth in the shot put at the U.S. Olympic trials. Gubner set several shot put records, including a 53-foot throw with a 16-lb. ball when he was 16, and three world indoor records in 1962. His best result of 19.80 m placed him second in the 1962 world ranking.