Marc Planus (born 7 March 1982) is a French former professional footballer who played as a defender.

A one-club man, he played his entire professional career for his local club Bordeaux.

He earned one cap for the France national team and was in the squad for the 2010 FIFA World Cup.

Planus made his league debut on 9 November 2002, against Rennes.

At the end of the 2014–15 Ligue 1 season, Planus announced his retirement from football.