Omar Daf (born 12 February 1977) is a Senegalese football coach and former player who manages French club Sochaux. A Senegal international, he represented his country at the 2002 FIFA World Cup. He also holds a French passport and spent most of his playing career at French club Sochaux-Montbéliard. He was a right-back but could also play on the left or at centre-back.
Born in Dakar, Daf began playing football with US Gorée. At age 17, a Belgian football scout, Karel Brokken, recruited him to Belgian Second Division side K.V.C. Westerlo, where he began his professional career. A year later, he joined French side Thonon FC before embarking on a 12-year spell with FC Sochaux-Montbéliard in 1997.
In November 2018 he became manager of Sochaux. In January 2019 he extended his contract until 2021.