The Galeries Lafayette is an upmarket French department store chain, the biggest in Europe. Its flagship store is on Boulevard Haussmann in the 9th arrondissement of Paris but it now operates a number of locations in France and other countries. In 2019, Galeries Lafayette recorded earnings of over five billion euros. It is a part of the company Groupe Galeries Lafayette and has been a member of the International Association of department stores since 1960.

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).