The Fort de Nogent or Fort de Nogent-sur-Marne is a French fortification forming part of the fortifications of Paris. Despite its name, the fort is located in Fontenay-sous-Bois; the name is derived from Nogent-sur-Marne the town the fort was planned to protect. The fort is presently occupied by the recruitment organization for the French Foreign Legion.
During the Algerian War the fort became an internment center. In 1961 nearly 200 officers who participated in the Algiers putsch were placed under "fortress arrest." Their detainment lasted for almost two months.
In 1962 the French Foreign Legion placed a detachment at the fort. Today the fort houses a Foreign Legion recruitment center.
Since the winter of 2006-2007 the fort has accommodated a winter Salvation Army shelter.