Kugruk River
General data
- Name: Kugruk River
- Water system: Kuzitrin River
- Water type: River
- Progression: Kuzitrin River -> Imuruk Basin -> Grantley Harbor -> Port Clarence Bay -> Bering Sea -> Pacific Ocean -> Planet Earth
- Climates: Subpolar
- Continents: North America
- Countries: United States of America
The Kugruk River is a stream, 60 miles (97 km) long, in the northwestern part of the U.S. state of Alaska. It is the largest tributary of the Kuzitrin River. It begins near Imuruk Lake on the Seward Peninsula and flows generally north to Kugruk Lagoon, at Kotzebue Sound on the Chukchi Sea. The river enters the lagoon 5.5 miles (8.9 km) southeast of Cape Deceit in the Northwest Arctic Borough.