Ousmane Diakité (born 25 July 2000) is a Malian professional footballer who plays as a defensive midfielder for EFL Championship club West Bromwich Albion.

In July 2018 he signed a contract with FC Red Bull Salzburg in Austria till May 2023.

[4] On 1 February 2023, Diakité joined Hartberg on a permanent deal, signing a contract until the summer of 2024.

[5] On 27 June 2024, Diakité agreed to join Championship side West Bromwich Albion on a two-year deal with the option for a further season.

[6] On 10 August, he made his debut for the club, as a substitute, in a 3-1 win against QPR in the league.