Ducktrap River
General data
- Name: Ducktrap River
- Water system: Atlantic Ocean
- Water type: River
- Progression: Penobscot Bay -> Gulf of Maine -> Atlantic Ocean -> Planet Earth
- Climates: Temperate
- Continents: North America
- Countries: United States of America
The Ducktrap River is a river in Waldo County, Maine. From the outflow in Tilden Pond in Belmont, the river runs 10 miles (16 km) southeast, through Camden Hills State Park, to West Penobscot Bay in Lincolnville.