Paris 6 train stations

Paris city has 6 major train stations:

Gare du Nord ("Paris North station") - Offers connections with several urban transportation lines (Paris Me'tro & RER)
By number of travellers (around 180 million per year), it is the busiest station in Europe, and the third-busiest railway station in the world
The railway station serves trains to the north of France, as well as various international destinations such as the United Kingdom, Belgium and The Netherlands
It was designed by French architect Jacques Hittorff and built between 1861 and 1864.

Gare Saint-Lazar - It is the second busiest in Europe, behind the Gare du Nord, handling 450,000 passengers each day, and serves several lines to Normandy.

Gare de l'Est ("East station" in English) - Located in the 10th arrondissement, not far from the Gare du Nord, facing the boulevard de Strasbourg, part of the north-south axis of Paris created by Baron Haussmann
It is one of the largest and the oldest railway stations in Paris.

Gare de Lyon - Named after the city of Lyon, a stop for many long-distance trains departing here, most en route to the south of France
In general the station's SNCF services run to the south and east of France
The station also hosts regional trains and the RER
It is served by the Gare de Lyon metro station.

Gare d'Austerlitz (Austerlitz Station) - Situated on the left bank of the Seine in the southeastern part of the city, in the XIIIe arrondissement
It is the origin for the Paris-Bordeaux and Paris-Toulouse main lines, but since the introduction of the TGV Atlantique - served by the Gare Montparnasse - Austerlitz has lost most of its long-distance southwestern services
It is used by some 25 million passengers annually, about half the number passing through Montparnasse.

Gare Montparnasse - Located in the Montparnasse area, in the XIVe arrondissement.

Here is a general map for Paris train stations: