Meduncook River

General data
- Name: Meduncook River
- Water system: Atlantic Ocean
- Water type: River
- Progression: Muscongus Bay -> Gulf of Maine -> Atlantic Ocean -> Planet Earth
- Climates: Temperate
- Continents: North America
- Countries: United States of America
Description
The Meduncook River is a 7-mile-long (11 km) river in Knox County, Maine. From its source in Friendship, the river runs about 1 mile south to the head of its estuary, then about 6 miles southwest to Muscongus Bay. The estuary forms part of the border between Friendship and Cushing.