David Witt (born June 2, 1973) is an American tennis coach and former professional player. He is currently coaching Frances Tiafoe and is best known as the former long-time coach of Venus Williams and Jessica Pegula. He enjoyed a successful junior career, during which time he won the USTA Boys' 16s Clay, Hard and National Championships and was the top-ranked under-16 in the USTA in 1989.[1] He was also a semifinalist at the US Open Junior Boys Singles event in 1991.[2]
In 2002, while working as the resident pro at the Deerwood Country Club in Jacksonville, Florida, Witt was approached by the Williams sisters to act as a hitting partner during their participation at the Bausch & Lomb Championships at nearby Amelia Island. In 2007, they asked him to accompany them to Charleston, South Carolina for the Family Circle Cup.[3] Since then he has acted as a travelling hitting partner for both women,[4] most notably for elder sister Venus.[5][6] In December 2018, Venus ended the 11-year partnership.[7] David Witt coached Jessica Pegula from July 2019[8] to January 2024. In March 2024, Witt began coaching Maria Sakkari,[9] and five months later, in July he started collaboration with Frances Tiafoe.[10]