Convention (French pronunciation: [kɔ̃vɑ̃sjɔ̃] ⓘ) is a station on line 12 of the Paris Métro in the 15th arrondissement.

The station opened on 5 November 1910 as part of the original section of the Nord-Sud Company's line A between Porte de Versailles and Notre-Dame-de-Lorette.

Like most stations along the line, the platforms were modernised with the installation of green metal casings on the walls from the 1950s, subsequently repainted in blue.

As part of the "Un métro + beau" programme by the RATP, the station's corridors were renovated and modernised on 17 January 2003.

The lower portion of the side walls are vertical instead of elliptical, as are the other stations constructed by the Nord-Sud company (today on lines 12 and 13).