Sekou Oumar Doumbouya (born 23 December 2000) is a French professional basketball player for MoraBanc Andorra of the Spanish Liga ACB.

Born in Conakry, Guinea, Doumbouya grew up in Paris, France and began his career with local club CJF Les Aubrais when he was 13.

His professional career started in 2016, when he joined Poitiers Basket 86 in the second-tier league of France, remaining with the team for two seasons.

He helped France win the gold medal at the 2016 FIBA Europe Under-18 Championship, finishing as his team's leading scorer.

[1] As a one-year-old, he moved to France with his mother M'Mah Marie, three siblings, and one cousin, settling in a small apartment in Fleury-les-Aubrais.

[9] In May 2016, Doumbouya represented French sports institute INSEP at the under-18 2015–16 Adidas Next Generation Tournament, averaging 14 points, 3.7 rebounds, and three assists while being one of the youngest players at the event at age 16.

[17] On 26 August 2016, at age 15, Doumbouya signed his first professional contract with Poitiers Basket 86 of the LNB Pro B, the second-tier French league.

[19][20] While with Poitiers, he attended private school to work towards his diploma, and tried to model the focus he saw in former NBA player Michael Jordan with the help of a sports psychologist.

[4] On 17 September 2016, Doumbouya made his professional debut, playing 13 minutes in an LNB Pro B Leaders Cup victory over Boulazac.

[22] He scored double figures for the first time on 20 January 2017, in an 81–63 loss to Fos Provence, posting a team-high 16 points on 7-of-11 shooting.

[43] Doumbouya missed his team's first four games at the 2019 Las Vegas NBA Summer League with hamstring pain and scored nine points in his only appearance, during a 105–85 loss to the Brooklyn Nets.

On 6 March, Doumbouya was assigned to the G League, recording 30 points and eight rebounds and making a game-winning jump shot in a 102–101 win over the Maine Red Claws.

[54] On 4 September 2021, Doumbouya and Jahlil Okafor were traded to the Brooklyn Nets in exchange for DeAndre Jordan and multiple second-round draft picks.

[61] On November 4, 2022, Doumbouya was named to the opening night roster for the Delaware Blue Coats,[62] and eventually helped the team win the NBA G League title.

[12] The process was delayed by months due to "bureaucracy," according to the France national under-18 team, and as a result he was barred from two FIBA competitions.

[7] Doumbouya made his national team debut at the 2016 FIBA Europe Under-18 Championship in Samsun, Turkey, which he entered as its youngest player.

[70] Doumbouya averaged a team-best 17.8 points, seven rebounds, 1.3 steals, and 1.2 blocks at the tournament, helping his team win the gold medal.

[77][80][81] Vincent Loriot, sports director for French club Le Mans, likened Doumbouya to NBA player LeBron James, calling him "a monster with a child's face".