Mashpee River
General data
- Name: Mashpee River
- Water system: Atlantic Ocean
- Water type: Estuary
- Progression: Popponesset Bay -> Atlantic Ocean -> Planet Earth
- Climates: Temperate
- Continents: North America
- Countries: United States of America
The Mashpee River is a 4.8-mile-long (7.7 km) tidal river on Cape Cod in Mashpee, Massachusetts.