| King Salmon River | |
| Map Size: | 300 |
| Pushpin Map: | USA Alaska |
| Pushpin Map Size: | 300 |
| Pushpin Map Caption: | Location of the mouth of the King Salmon 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: | 35miles |
| Source1: | Mother Goose Lake |
| Source1 Location: | Alaska Peninsula National Wildlife Refuge |
| Source1 Coordinates: | 57.2172°N -157.3831°W |
| Source1 Elevation: | 76feet[1] |
| Mouth: | Ugashik River |
| Mouth Location: | 7miles south of Bristol Bay and 8miles southwest of Ugashik, Alaska Peninsula |
| Mouth Coordinates: | 57.4972°N -157.6417°W[2] |
| Mouth Elevation: | 0feet |
The King Salmon River is a 35miles tributary of the Ugashik River in the U.S. state of Alaska.[2] Beginning at Mother Goose Lake in the Aleutian Range, it flows northwest to meet the larger river near the upper reaches of Ugashik Bay.[3] The lake and the upper course of the King Salmon lie within the Alaska Peninsula National Wildlife Refuge.[3] The river's gravel bottom and braided channels are ideal for the many king salmon that spawn in its waters, but they limit navigation to small skiff.
There are many rivers in Alaska bearing the name King Salmon River, including tributaries to the Egegik River and Nushagak River systems in southwest Alaska, alone. The name is also occasionally confused with a nickname given the Kenai River, a popular fishing stream located in the Cook Inlet drainage of southcentral Alaska.
Besides the large numbers of king salmon, the river also hosts large numbers of sea-run Dolly Varden, Chum Salmon and a small run of Pink Salmon.