, commonly referred to as or , is a private research university in Hachioji, Tokyo, Japan. The university finds its roots in a school called (English Law School), which was founded in 1885, and became a university in 1920. The university operates four campuses in Tokyo: the largest in Hachiōji (Tama campus), one in Bunkyō (Korakuen campus), and two others in Shinjuku (Ichigaya and Ichigaya-Tamachi campuses).