Souleymane Diaby is a 27-year-old professional football player from CIV. He currently plays for Winterthur, wearing the number 18 shirt. He plays primarily as a Defender. He stands at 169cm tall and weighs 69kg. His current market value is estimated at 400K €.

His most recent move was a from SC Gagnoa to Winterthur on 2021-07-03.

Throughout the Switzerland Super League 2025-2026, Souleymane Diaby featured in 21 matches, averaging 1.6 tackles, 0.7 interceptions, and 2.3 clearances per game, while blocking 0 shots per game.