Gare de Lyon is a station on Line 1 and Line 14 of the Paris Métro. It is connected to the Gare de Lyon mainline rail and RER platforms within one complex and is the third-busiest station on the network with 30.91 million entering passengers in 2004, made up of 15.78 million on Line 1 and 15.13 million on Line 14.

Paris Métro Line 1 is one of the sixteen lines of the Paris Métro. It connects La Défense–Grande Arche in the northwest and Château de Vincennes in the southeast. With a length of 16.5 km (10.3 mi), it constitutes an important east–west transportation route within the City of Paris. Excluding RER commuter lines, it is the busiest line on the network with 181.2 million travellers in 2017 or 496,000 people per day on average.