Moussa Niakhaté (born 8 March 1996) is a French professional footballer who plays as a centre-back for Bundesliga club Mainz 05.
In July 2018, Niakhaté joined 1. FSV Mainz 05 from FC Metz for an undisclosed fee, signing a five-year contract until 2023.
Niakhaté played three times for the French U19 national team and eight times for the U20 selection. On March 27, 2018, he made his debut for the French U21 national team in a 2-0 victory in the European Championship qualifier against Montenegro in Nikšić.