Urauchi River
| Urauchi River 浦内川 | |
|---|---|
 | |
| Mouth | East China Sea |
| Basin countries | Japan |
| Length | 18.8 km (11.7 mi) |
| Source elevation | 311.7 m (1,023 ft) |
| Avg. discharge | 120 m3/s (4,200 cu ft/s) at mouth |
| Basin area | 54.24 km2 (20.94 sq mi) |
The Urauchi River (浦内川 Urauchi-gawa) flows throw the central portion of the island of Iriomote in the Yaeyama District in Okinawa Prefecture, Japan. It is the longest river in Okinawa.