Olivier Muntenau N'Siabamfumu (born 17 March 1986) is a French former professional footballer who played as a midfielder.
N'Siabamfumu started his professional career at Stade Rennais without playing. He then caught the eye of Italian side Ascoli. His first season was not successful since he had a serious injury and released in summer 2008. In January he signed a trial deal to AEK Athens later a contract for six months
In 2009, he signed a two-year contract with Crotone, but just after one game played he was acquired by Carrarese.
In August 2010, he trailed for Colmar.
In March 2013, N'Siabamfumu signed for Norwegian side Kristiansund BK, after first have failed a trial with first division side Sarpsborg 08.
N'Siabamfumu is a former member of the France U19 national team and participant of the 2005 UEFA European Under-19 Football Championship.
His brother, Régis is also a former footballer and member of Strasbourg.
France U19