Nakagawa in the Edo period
Nakagawa in the Edo period

Naka River (中川, Naka-gawa) is a river that flows from Hanyu, Saitama to Edogawa, Tokyo, Japan. It is 83.7 kilometres (52.0 mi) long. At the river's end, it merges with the Arakawa River.

35°39′37″N 139°51′00″E / 35.660321°N 139.849917°E / 35.660321; 139.849917Coordinates: 35°39′37″N 139°51′00″E / 35.660321°N 139.849917°E / 35.660321; 139.849917 (confluence with Ara River)