| Amekawa Dam | |
| Coordinates: | 36.1847°N 138.5522°W |
| Country: | Japan |
| Location: | Saku, Nagano |
| Purpose: | Multi-purpose |
| Status: | O |
| Dam Type: | G |
| Dam Crosses: | Amekawa |
| Dam Height Thalweg: | 28 m |
| Dam Length: | 126 m |
| Dam Volume: | 38,000 m3 |
| Res Capacity Total: | 800,000 m3 |
| Res Surface: | 8.9 ha |
| Res Max Depth: | 28 m |
Amekawa Dam (Japanese: 雨川ダム) is a check dam on Ame river in Saku, Nagano Prefecture, Japan. The primary purpose is reducing water flow velocity to counteract erosion. It is also used for water supply.
The pole of inaccessibility of Japan lies near this dam.