Ousseynou Ba is a 31-year-old professional football player from SEN. He currently plays for Başakşehir Futbol Kulübü, wearing the number 27 shirt. He plays primarily as a Defender. He stands at 192cm tall and weighs 84kg. His preferred foot is Right. His current market value is estimated at 1.5M €.

His most recent move was a Free from Olympiacos Piraeus to Başakşehir Futbol Kulübü on 2024-07-13. The reported fee was 1M €.

Throughout the Turkish Super League 2025-2026, Ousseynou Ba featured in 22 matches, averaging 0.4 tackles, 0.8 interceptions, and 2.7 clearances per game, while blocking 0 shots per game.