| Eek River | |
| Map Size: | 300 |
| Pushpin Map: | USA Alaska |
| Pushpin Map Size: | 300 |
| Pushpin Map Caption: | Location of the mouth of the Eek River in Alaska |
| Subdivision Type1: | Country |
| Subdivision Name1: | United States |
| Subdivision Type2: | State |
| Subdivision Name2: | Alaska |
| Subdivision Type4: | Census Area |
| Subdivision Name4: | Bethel |
| Length: | 108miles |
| Source1: | small lake 0.5miles northeast of Mount Oratia |
| Source1 Location: | Togiak National Wildlife Refuge |
| Source1 Coordinates: | 59.9383°N -160.0003°W |
| Source1 Elevation: | 2778feet[1] |
| Mouth: | Eek Channel, Kuskokwim River |
| Mouth Location: | 45miles southwest of Bethel, Yukon Delta National Wildlife Refuge |
| Mouth Coordinates: | 60.0853°N -162.3078°W[2] |
| Mouth Elevation: | 0feet |
The Eek River is a 108miles tributary of the Kuskokwim River in the U.S. state of Alaska.[2] It is south of the Kwethluk River and north of the Kanektok River, which also drain into the Kuskokwim or Kuskokwim Bay on the Bering Sea.
Beginning at a small lake near Mount Oratia in the Togiak National Wildlife Refuge, the Eek River flows generally northwest into the Yukon Delta National Wildlife Refuge to meet the larger river near Eek Island in western Alaska.[3] The Eek River supports large populations of pink salmon and Arctic char.[4]