Olivier Sarr (/oʊˈlɪvjeɪ ˈsɑːr/ oh-LIV-yay SAR,[1] French pronunciation: [ɔlivje saʁ]; born 20 February 1999) is a French professional basketball player who last played for the Oklahoma City Thunder of the National Basketball Association (NBA), on a two-way contract with the Oklahoma City Blue of the NBA G League.

Sarr started playing basketball at age three with his father, a former player, and drew inspiration from Hakeem Olajuwon.

[3] He competed for Centre Fédéral in the Nationale Masculine 1 and represented INSEP at the Adidas Next Generation Tournament.

[6] He was considered a four-star recruit by Scout and committed to Wake Forest over offers from California, Vanderbilt and UCF.

He declared for the 2021 NBA draft, forgoing the additional season of eligibility granted by the NCAA due to the COVID-19 pandemic.

[29] In the 2023–24 NBA season, Sarr made 15 appearances for the Thunder, averaging 2.3 points, 2.4 rebounds, and 0.1 assists in 6.5 minutes per game.

On 15 April 2024, Sarr suffered a ruptured Achilles in the OKC Blue's G-League Finals victory over the Maine Celtics.

At the 2017 FIBA U18 European Championship in Slovakia, Sarr averaged 7.6 points and 5.4 rebounds per game for the sixth-place team.