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Ashida River
Physical characteristics
 • locationSera Plateau
 • elevation570 m (1,870 ft)
 • location
Seto Inland Sea
Length86 km (53 mi)
Basin size870 km2 (340 sq mi)

The Ashida River (芦田川, ashida-gawa) is a river that flows through the eastern part of Hiroshima Prefecture, Japan. The river provides the primary drainage for the Bingo region.

The source of the river is in the city of Mihara, Hiroshima and flows generally east toward Niimi, Okayama. After flowing through the Hattabara and Mikawa Dams in Fuchū, Hiroshima, the river passes through Fukuyama, Hiroshima, where it empties into the Seto Inland Sea.

Coordinates: 34°26′16″N 133°24′21″E / 34.4378°N 133.4058°E / 34.4378; 133.4058