Niels Marnegrave (born 9 December 1987) is a Belgian retired basketball player and current coach.
He currently is an assistant coach for Limburg United of the BNXT League.
Marnegrave debuted on the professional level in the 2004–05 season for Liège Basket.
Marnegrave signed with defending Belgian champion Telenet BC Oostende for the 2013–14 season.
[4] In September 2021, Marnegrave joined his last club Limburg United as assistant coach.