| Tatsuushi River (Tatsuushi-gawa) | |
| 立牛川 | |
| River | |
| Country | Japan |
|---|---|
| State | Hokkaidō |
| Region | Abashiri |
| District | Monbetsu |
| Municipality | Monbetsu |
| Part of | Shokotsu River |
| Source | Kitami Fuji |
| - location | Monbetsu, Hokkaidō, Japan |
| - elevation | 1,306 m (4,285 ft) |
| - coordinates | 44°1′0″N 143°8′41″E / 44.01667°N 143.14472°E |
| Mouth | Shokotsu River |
| - location | Monbetsu, Hokkaidō, Japan |
| - coordinates | 44°12′51″N 143°13′52″E / 44.21417°N 143.23111°ECoordinates: 44°12′51″N 143°13′52″E / 44.21417°N 143.23111°E |
| Length | 33.3 km (21 mi) |
Tatsuushi (立牛川 Tatsuushi-gawa) is a river in Hokkaidō, Japan.
The river rises on the slopes of Kitami Fuji in the Kitami Mountains. It flows 33 km in a northerly direction until it flows into the Shokotsu River.