| Akan River | |
| Name Other: | 阿寒川 |
| Subdivision Type1: | Country |
| Subdivision Name1: | Japan |
| Subdivision Type2: | State |
| Subdivision Name2: | Hokkaidō |
| Subdivision Type3: | Region |
| Subdivision Name3: | Kushiro |
| Subdivision Type4: | District |
| Subdivision Name4: | Kushiro |
| Length: | 98km (61miles) |
| Source1: | Lake Akan |
| Source1 Location: | Kushiro |
| Source1 Coordinates: | 43.4319°N 144.1367°W |
| Source1 Elevation: | 420m (1,380feet) |
| Mouth: | Pacific Ocean |
| Mouth Location: | Kushiro |
| Mouth Coordinates: | 43.0033°N 144.2722°W |
| Mouth Elevation: | 0m (00feet) |
| Basin Size: | 718km2 |
is a river in Hokkaidō, Japan.
The Akan River rises from Lake Akan, 420m (1,380feet) above sea level.[1] The lake formed when the Akan River was dammed by an eruption of Mount Oakan some 6000 years ago.[2] [3] The river exits the lake at Takiguchi as a waterfall. This spot and Takimi Bridge nearby are attractions in Akan National Park.
The river winds its way south entirely within the district managed by Kushiro, Hokkaidō. The river then flows into the Pacific Ocean.