Itabashi is a special ward in the Tokyo Metropolis in Japan. In English, it is called Itabashi City. Itabashi has sister-city relations with Burlington, Ontario, in Canada; Shijingshan District of Beijing in the People's Republic of China; and Bologna in Italy.

Tokyo City was a municipality in Japan and capital of Tokyo Prefecture which existed from 1 May 1889 until its merger with its prefecture on 1 July 1943. The historical boundaries of Tokyo City are now occupied by the special wards of Tokyo. The newly-merged government became what is now Tokyo, also known as the Tokyo Metropolis or, ambiguously, Tokyo Prefecture.