The Porte Saint-Martin is a monument located in Paris, France. It stands at the site of one of the gates that once formed part of the city's fortifications, which have since been destroyed.
The structure is situated at a major intersection where several streets meet. It is positioned between the Rue Saint-Martin to the south and the Rue du Faubourg Saint-Martin to the north, as well as the Boulevard Saint-Martin to the east and the Boulevard Saint-Denis to the west.