The term Gare du Nord is a railway station located in Paris, France. It is the busiest railway station in Europe, serving over 180 million passengers annually. The station is named after the nearby area of the same name, which is derived from the Dutch word for 'NORTH'. The station is connected to several major train lines, including the Eurostar, Thalys, and RER. It also serves as a hub for local and regional trains.