Marcoussis is a commune in the southern suburbs of Paris, France. It is located 24.8 km from the center of Paris. Marcoussis is the location of the CNR where the French national rugby union team prepare for international competitions. It is at the CNR that the Linas-Marcoussis Agreement was signed in January 2003 between belligerents in the Ivorian Civil War. A market village until the 1960s, Marcoussis supplied the markets of Paris with tomatoes and strawberries.