Debenhams plc was a British department store chain operating in the United Kingdom, Denmark and the Republic of Ireland, and is still operating as a franchise in seven Middle East countries. It was founded in 1778 as a single store in London and grew to 178 locations across those countries, also owning the Danish department store chain Magasin du Nord. In its final years, its headquarters were within the premises of its flagship store in Oxford Street, London. The range of goods sold included middle-to-high-end clothing, beauty, household items, and furniture.

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).