William Tonji N'Gounou (born 31 July 1983) is a Nigerien retired footballer who played as a striker.

N'Gounou played for Kadji Sports Academy, AS FAN, FC Rosengård, IF Limhamn Bunkeflo and KSF Prespa Birlik.

[1] He made his international debut for Niger in 2011,[1] and appeared for them in FIFA World Cup qualification matches.

[2] He was selected for the 2012 Africa Cup of Nations,[3] scoring Niger's first ever and to date, only, goal in tournament history versus Tunisia in 1–2 loss.

This biographical article related to Nigerien association football is a stub.