Trey Mullinax (born June 29, 1992) is an American professional golfer. Mullinax was born in Birmingham, Alabama. He attended and played golf at Gardendale High School. He played college golf at the University of Alabama where he won two tournaments, was an All-American, and helped the team to the 2013 and 2014 NCAA Championships. Mullinax turned professional in 2014 and has played on the Web.com Tour since 2015. He won his first Web.com Tour event at the 2016 Rex Hospital Open.