David Edward Bailiff (born May 26, 1958) is an American football coach and former player. He was most recently the head coach at Texas A&M University–Commerce from 2019-2022; prior to that he was the head coach at Rice University in Houston, Texas from 2007 to 2017. During his tenure as head coach, the Rice Owls played in four bowl games, winning 3 of them, and won the 2013 Conference USA football championship. He also coached at his alma mater, Texas State University, where he led the Bobcats to the NCAA Division I-AA National Semifinals in 2005.