Seibu-Shinjuku Station is a railway station in Shinjuku, Tokyo, Japan, operated by the private railway operator Seibu Railway. It is the terminus of the 47.5 km Seibu Shinjuku Line, which extends to Hon-Kawagoe in Saitama Prefecture. The station is located approximately 420 meters by foot from Shinjuku Station. It is part of the Shinjuku Prince Hotel and Seibu PePe department store complex, with the ticket machines and platforms located on the second-floor level.