Red Hill River
General data
- Name: Red Hill River
- Water system: Merrimack River
- Water type: River
- Progression: Lake Winnipesaukee -> Winnipesaukee River -> Merrimack River -> Gulf of Maine -> Atlantic Ocean -> Planet Earth
- Climates: Temperate
- Continents: North America
- Countries: United States of America
The Red Hill River is a 6.5-mile-long (10.5 km) river in the Lakes Region of central New Hampshire in the United States. It is a tributary of Lake Winnipesaukee, part of the Merrimack River watershed.