David Knapp Stockton (born November 2, 1941) is an American professional golfer who has won numerous tournaments on both the PGA Tour and the Champions Tour.
Stockton was born in San Bernardino, California. He attended University of Southern California and turned professional in 1964. His first PGA Tour win came at the 1967 Colonial National Invitation. He was selected by former Colonial champions as one of two Champion's Choice invitations; he is the only Champion's Choice invitee to win the Colonial in the year of the invitation. His career year was 1974, when he won three times, but his two majors, both of which were PGA Championships, came in 1970 and 1976. In 1970 he played the final round with Arnold Palmer, shooting an erratic seventy-three which included an eagle and a double-bogey back to back on the seventh and the eighth, and making only a bogey on the thirteenth despite putting a ball in the water. In the end, this effort was good enough for a two stroke victory over Palmer and Bob Murphy. Due to rain at the 1976 PGA Championship, which was held at the Congressional Country Club, the final round had to be delayed until Monday for the first time in the tournament's history. Stockton sank a fifteen-foot par putt at the seventy-second hole to avoid a three-man playoff with Raymond Floyd and Don January.
Stockton joined the Senior PGA Tour (now the Champions Tour) in 1991 and enjoyed continued success, topping the Senior Tour money list in 1993 and 1994. His fourteen senior titles include three senior majors, the 1992 and 1994 Senior Players Championships and the 1996 U.S. Senior Open. He remains competitive in his sixties, finishing in the Top 50 on the Champions Tour money list for a thiteenth consecutive season in 2004.