Saks Fifth Avenue is an American luxury department store chain headquartered in New York City and founded by Andrew Saks. The original store opened in the F Street shopping district of Washington, D.C. in 1867. Saks expanded into Manhattan with its Herald Square store in 1902 and flagship store on Fifth Avenue in 1924. The chain was acquired by Tennessee-based Proffitt's, Inc. in 1998, and Saks, Inc. was acquired by the Canadian-based Hudson's Bay Company (HBC) in 2013.

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).