Oumar Diop (born 12 November 1992) is a Guinean professional footballer who plays as a right back for Swiss club Signal FC Bernex-Confignon. In 2015, he made five appearances for the Guinea national team.
Born in Conakry, Diop has played for Raja Casablanca, Chabab Rif Al Hoceima, KAC Kénitra, Cittàdi Scordia and Sedan.
He made his international debut for Guinea in 2015.