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