DeWitt Thompson Weaver Sr. (May 11, 1912 – January 19, 1998) was an American football player, coach, and college athletics administrator. He served as the head football coach of the Texas Tech Red Raiders from 1951 to 1960. He was the first head football coach at Texas Tech to win a bowl game during his first season—an accomplishment unmatched at Texas Tech until Tommy Tuberville's first season, in 2010. In 1956, he became the first college coach to defeat the Texas Longhorns in a season-opener in Austin. He amassed a 49–51–5 record.