L’église Saint-Eustache is a church in the 1st arrondissement of Paris, built between 1532 and 1632.

Situated at the entrance to Paris’s ancient markets (Les Halles) and the beginning of rue Montorgueil, the Église de Saint-Eustache is considered a masterpiece of late Gothic architecture. The church’s reputation was strong enough of the time for it to be chosen as the location for a young Louis XIV to receive communion. Mozart also chose the sanctuary as the location for his mother’s funeral. Among those baptised here as children were Richelieu, Jeanne-Antoinette Poisson, future Madame de Pompadour and Molière, who was also married here in the 17th century. The last rites for Anne of Austria, Turenne and Mirabeau were pronounced within its walls. Marie de Gournay is buried there.