Ousmane Diop (born February 19, 2000) is a Senegalese professional basketball player for Olimpia Milano of the Italian Lega Basket Serie A (LBA) and the EuroLeague.

He plays at the center position.

He made his debut in Italy in the 2016–17 season of the Serie A2 league, in Pallacanestro Udine, a team with which, in the following season, he played in the play-offs of the East Group.

In August 2018 he signed a four-year contract with the Dinamo Sassari.

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