Gabriel Mutombo Kupa (born 19 January 1996) is a French professional footballer who plays as a defender for Thai League 1 club Ratchaburi.

[1] After ten years in the academy of Olympique Lyonnais, Mutombo was let go and joined the youth teams of Angers SCO.

[3][4] He made his professional debut for Orléans in a 1–0 Ligue 2 loss to US Quevilly-Rouen on 17 November 2017.

[6] In August 2020, Mutombo moved to Troyes AC, signing a two-year deal.

[8] Born in France, Mutombo is of Congolese descent, and was called up to the DR Congo national under-20 football team for a friendly against the France U20s, but did not make an appearance because he was mourning the death of his brother.