Souleymane Diaby (born 8 October 1999) is an Ivorian professional footballer who plays as a left-back for Winterthur.
Diaby began his senior career in the Ivory Coast with Bingerville, and moved to Denguélé briefly in 2017.
On 3 July 2021, he moved to the Swiss club Winterthur.
He extended his contract with Winterthur on 28 July 2022 for three more years.
[2] He made his professional debut with Winterthur in a 2–0 Swiss Super League loss to St. Gallen on 23 June 2022.