Lagny-sur-Marne (French pronunciation: [laɲi syʁ maʁn] , literally Lagny on Marne) is a commune in the eastern suburbs of Paris, France. It is located in the Seine-et-Marne department in Île-de-France 26.1 km (16.2 mi) from the centre of Paris (20 minutes away from the centre of Paris).
The commune of Lagny-sur-Marne is part of the Val de Bussy sector, one of the four sectors in the "new town" of Marne-la-Vallée.
