Ousmane Diomande is a 22-year-old professional football player from CIV. He currently plays for Nottingham Forest, wearing the number 2 shirt. At the international level, he represents Cote d'Ivoire. He plays primarily as a Defender. He stands at 190cm tall and weighs 85kg. His preferred foot is Right. His current market value is estimated at 42M .

His most recent move was a Free from Sporting CP to Nottingham Forest on 2026-08-11. The reported fee was 40M €.

Throughout the FIFA World Cup qualification (CAF) 2026, Ousmane Diomande featured in 5 matches, averaging 0 tackles, 0 interceptions, and 0 clearances per game, while blocking 0 shots per game.