Paul William Hait (born May 25, 1940) is an American former competition swimmer and breaststroke specialist who is an Olympic champion and former world record-holder. Hait won a gold medal in the 4×100 m medley relay at the 1960 Summer Olympics in Rome, where he swam in the preliminary heats (with Steve Clark, Bob Bennett and Dave Gillanders) and in the final (with Frank McKinney, Lance Larson and Jeff Farrell), breaking the world record in both the heats and the finals. Individually, he finished eighth in the men's 200-meter breaststroke with a time of 2:41.4.