Saint-Laurent, Gothic church in 10th arrondissement, France

Saint-Laurent is a Gothic church in the 10th arrondissement with pointed arches, ribbed vaults, and large stained glass windows that define its interior. The building displays construction phases from different centuries layered together in its structure and decoration.

Founded at the end of the 5th century outside the walls of Paris, the church was rebuilt in the 15th century in the Flamboyant Gothic style, with its choir consecrated on 14 June 1429. The nave was vaulted in 1655–1659, the last Flamboyant Gothic construction in Paris. The classical facade of 1621 was demolished in 1862 and replaced by Simon-Claude Constant-Dufeux's Neo-Gothic facade, aligned with the new boulevards.

The parish is linked to the Filles de la Charité, founded in 1633 by Vincent de Paul and Louise de Marillac, whose body rested in the church from 1660 to 1755. In 1768 Madame du Barry married Guillaume du Barry here before her presentation at Versailles. The north transept chapel is dedicated to Saint Lawrence, with a 19th-century painting of his martyrdom by Louis Boulanger.

The church stands at 68 bis Boulevard de Magenta, where the boulevard meets Rue du Faubourg-Saint-Martin and Boulevard de Strasbourg. The main entrance is through the portal on the boulevard; the interior has double side aisles that make circulation easy. It is an active parish, so visits are best outside Mass times.

The tympanum painting over the portal, "the Passion of Saint Lawrence", was finished in 1870 by Jean-Paul Baize using enamel paints baked onto lava stone, a technique chosen to withstand sharp temperature changes. The choir windows were replaced between 1932 and 1939 by the Atelier Gaudin of Pierre Gaudin.