| Cinder River | |
| Map Size: | 300 |
| Pushpin Map: | USA Alaska |
| Pushpin Map Size: | 300 |
| Pushpin Map Caption: | Location of the mouth of the Cinder River in Alaska |
| Subdivision Type1: | Country |
| Subdivision Name1: | United States |
| Subdivision Type2: | State |
| Subdivision Name2: | Alaska |
| Subdivision Type4: | Borough |
| Subdivision Name4: | Lake and Peninsula |
| Length: | 44miles |
| Source1: | Aleutian Range, Alaska Peninsula |
| Source1 Location: | Aniakchak National Monument and Preserve |
| Source1 Coordinates: | 56.9189°N -157.6086°W |
| Source1 Elevation: | 1503feet[1] |
| Mouth: | Bristol Bay |
| Mouth Location: | 136miles northeast of Port Moller |
| Mouth Coordinates: | 57.3706°N -158.0975°W[2] |
| Mouth Elevation: | 0feet |
The Cinder River is a stream, 44miles long, in southwestern Lake and Peninsula Borough in the U.S. state of Alaska.[2] It begins in Aniakchak National Monument and Preserve and flows northwest into Bristol Bay.[2]
Silver salmon are plentiful in the Cinder River, which drains cinder beds on the flanks of Mount Aniakchak. Accessible mainly by small airplanes that can land on cinder beds or beach sand, the river is lightly fished.[3]