Quatre-Septembre is a station of the Paris Métro, serving Line 3. Fare Zone: 1.

It was opened in October 1904, when the first section of Line 3 began service between the Avenue de Villiers (today the station is known as simply Villiers) and Père Lachaise.

Situated on the Rue du 4 Septembre, the station commemorates the date of 4 September 1870, when Léon Gambetta proclaimed the beginning of the French Third Republic from the palace of the Tuileries, after the capture of French emperor Napoleon III by German armies during the Franco-Prussian War.