The Seibu Department Stores, Ltd. (株式会社西武百貨店 Kabushiki-gaisha Seibu Hyakkaten?) is a Japanese department store. The first store to trade under the name opened its doors in 1949. Seibu is typical of Japanese department stores with a wide variety of stores doing business on several floors. The company is now a subsidiary of Seven & I Holdings Co., Ltd..
The Seibu Department Stores flagship store is located in Ikebukuro. In Tokyo, there are also stores in Shibuya and Yūrakuchō. There are 16 stores in the whole country, with about 5 billion dollars in annual sales. In addition to department stores, Seibu operates the specialty stores Loft, , and Muji. The Seiyu Group are companies of the .
From 1960 until 1995, Seibu Department stores sold imported European and American cars. Competing with Yanase, Seibu sold Citroen, Saab, Chevrolet, Fiat, Ferrari, Holden, and Peugeot. It was originally called starting in 1963 until Seibu assumed operations in 1971.
Seibu opened their first non-Japanese location in Hong Kong at Langham Place in but sold their operations to Dickson Concepts in 1996, but the store operated until September 2013 (the locations has since been occupied by Beauty Avenue). The company was a cornerstone of Hong Kong's retailing.
The first Seibu in Indonesia was opened in 1996 located near a busy bus terminal, Blok M, in Jakarta. It occupies over eight levels of upscale shopping experience with an atrium at the centre. The department store is operated by ALatief Corporation, a company which also managed a major local department store, then called Pasaraya Blok M. The two department stores are adjacent and a pedestrian bridge connects the buildings. However, due to its location, Seibu has failed to attract its targeted market and was closed down several years after its opening. The previously building occupied by Seibu is now called the East Wing of Pasaraya Grande, Indonesia's largest department store.