Line 6 is one of the sixteen lines of the Paris Métro rapid transit system. Following a semi-circular route around the southern half of the city above boulevards built along the path of the former Fermiers généraux wall of 1784–1860, it runs between Charles de Gaulle–Étoile in the west and Nation in the east. A significant part of the route is on elevated tracks.

Nation station is a station of the Paris Métro and Île-de-France's RER commuter rail service. It serves Line 1, Line 2, Line 6 and Line 9 of the Paris Métro and RER A. It takes its name from its location at the Place de la Nation.