Itabashi is one of the 23 special wards of Tokyo, Japan. In English, it calls itself Itabashi City. Itabashi has sister-city relations with Burlington, Ontario in Canada; Shijingshan District in Beijing, People's Republic of China; and Bologna in Italy.
As of 2008, the ward has an estimated population of 531,793 and a density of 16,270 persons per km². The total area is 32.17 km².
Itabashi lies on the Kantō plain. The Arakawa, a major river, forms part of the boundary with Saitama Prefecture. Surrounding the ward are, in Saitama, the cities of Wako and Toda; and in Tokyo, the wards of Nerima, Toshima, and Kita.