David Oliver McCormick (July 10, 1943 – March 17, 1986) was a professional American football player who played tackle in the National Football League (NFL). He played in the NFL for two seasons, one each with the San Francisco 49ers and the New Orleans Saints, the latter of which he was a part of their inaugural season roster.^[1] He played in a total of 16 games: 14 with the 49ers and two with the Saints.^[2]

McCormick was born in Winnsboro, Louisiana, and attended Rayville High School in Rayville, Louisiana. He attended Louisiana State University, where he played college football for the LSU Tigers football team. In 1965, he was selected as a first-team All-Southeastern Conference player by the Associated Press and UPI.^{[citation needed]}