​Overall, there are seven major train stations in Paris featuring Gare du Nord, Gare de I'Est, Gare d'Austerlitz, Gare de Bercy, Gare de Lyon, Gare Montparnasse, and Gare Saint-Lazare. As each of the mentioned railway hubs sends trains to different destinations, it's advisable to check your departure station during the booking process carefully. ​