John McMullin (born c. 1935) is an American professional golfer who played on the PGA Tour in the 1950s and 1960s. McMullin was born in Richmond, California. He was a pupil of noted black golf instructor Lucius Bateman, whose other students included future PGA Tour winners Don Whitt, Dick Lotz and Tony Lema. McMullin attended Modesto Junior College, where he was a member of the golf team. He was the individual medalist at the Western Intercollegiate Golf Tournament in 1955. After his touring days were over, McMullin became the golf course professional at Palo Alto Municipal Golf Course.