David Holmes "Dave" Edgar (born March 27, 1950) is an American former swimmer, 1972 Olympic champion, and former world record-holder.

Excelling in the efficiency of his flip turn technique under the mentorship of Coach Ray Bussard at the University of Tennessee, many consider Edgar one of the greatest short course 50 and 100-yard sprinters of the 1970s.

[4] Edgar won seven NCAA championships while swimming for the Volunteers, and was named the "Fastest Man Afloat" by Sports Illustrated magazine.

[9] He received another gold medal in 4×100-meter freestyle relay at the 1971 Pan American Games in Cali, Colombia with the team of Steve Genter, Jerry Heidenreich, and the non-Olympian Frank Heckl.

[6][9] Besides his Olympic gold, he was on a winning 4×100 metre freestyle relay team (with Steve Genter, Jerry Heidenreich, and the non-Olympian Frank Heckl) at the 1971 Pan American Games.