Arcandor AG is a holding company, which through its subsidiaries, owns and operates home shopping, general merchandise, and departmental retail stores. The company operates stores under Karstadt, Alsterhaus, KaDeWe, and Oberpollinger brands; and sporting goods stores under the Karstadt sports brand, as well as an online store under the karstadt.de brand name. It also provides restaurant services under the Le Buffet brand name.

In addition, the company offers mail order services through monthly catalogues and the Internet. Its online sites include quelle.de, a shopping site focusing on fashion, technology, home, and kitchen products. The company was formerly known as Karstadt Quelle Aktiengesellschaft and changed its name to Arcandor AG in July 2007.

The company was founded in 1881 and is based in Essen, Germany.