Marie Grace Nyinawumuntu (born 16 December 1982) is a Rwandan football manager and former footballer.
Nyinawumuntu grew up playing sports with her male cousins.
Nyinawumuntu attended the Lycée de Kigali in Rwanda. She then obtained a bachelor's degree in physical education and sport and Master's degree in Business Administration.
Nyinawumuntu played for the city of Kigali, where she was described as "her impressive performances earned her a place in the national team".
Nyinawumuntu mainly operated as a central defender.
Nyinawumuntu is the first Rwandan female international referee and the first Rwandan female national football manager. Nyinawumuntu attended a coaching course in Germany in 2008. She managed Rwandan side AS Kigali, helping the club win the league.
Nyinawumuntu's father died in the Rwandan genocide. She has been married to a lawyer.