Richard William Roth (born September 26, 1947) is an American former competition swimmer, Olympic champion, and former world record-holder in two events. He swam in the 1964 Olympic Games in Tokyo, Japan, where he won the gold medal for his first-place finish in the men's 400-meter individual medley, setting a new world record of 4:45.4 in the event final. Shortly before the individual medley final, Roth suffered an appendicitis, but refused an immediate operation.