Paris Métro Line 7

Paris Métro Line 7 is one of sixteen lines of the Paris Métro system. Crossing the capital from its north-eastern to south-eastern sections via a moderately curved path, it links La Courneuve – 8 mai 1945 in the north with Mairie d'Ivry and Villejuif – Louis Aragon in the south, while passing through important parts of central Paris.

Line 7 began operating in 1910 and, along with Line 13, is one of only two Métro lines that splits into branches. Originally, this was in the northeast and splitting at Louis Blanc, which was separated in 1967 to become Line 7bis. In 1982, a new branch was added in the southeast to Mairie d'Ivry, branching off at Maison Blanche. Line 7 has only steel rails.

At 18.6 km (12 mi), Line 7 is one of the longest in the Paris Métro network. In addition, it contains the most stations as well as being the fourth most-used line of the Métro, with 135.1 million riders in 2017.