Le Bon Marché is a department store in Paris, France. Founded in 1838 and revamped almost completely by Aristide Boucicaut in 1852, it was one of the first modern department stores. It was a member of the International Association of Department Stores from 1986 to 2011.

A department store is a retail establishment offering a wide range of consumer goods in different areas of the store, each area ("department") specializing in a product category. In modern major cities, the department store made a dramatic appearance in the middle of the 19th century, and permanently reshaped shopping habits, and the definition of service and luxury. Similar developments were under way in London, in Paris and in New York City (Stewart's).