The rue de Montmorency is a street in the historic Le Marais quarter of Paris, part of the city's 3rd arrondissement. It runs from the rue du Temple to the rue Saint-Martin.

The 3rd arrondissement of Paris is one of the 20 arrondissements (districts) of the capital city of France. In spoken French, this arrondissement is colloquially referred to as "le troisième" meaning "the third". Its postal code is 75003. It is governed locally together with the 1st, 2nd and 4th arrondissements, with which it forms the 1st sector of Paris, Paris Centre.