The North Branch River is an 8.2-mile (13.2 km) long  river in southeastern New Hampshire in the United States. It is a tributary of the Lamprey River, part of the Great Bay and Piscataqua River watershed leading to the Atlantic Ocean.
The river begins in Bear Brook State Park, in Deerfield, New Hampshire, at the outlet to Beaver Pond. Flowing southeast, it quickly leaves the park, then enters the town of Candia. It passes under New Hampshire Route 43 just south of the village of Candia, then reaches NH 27 just before entering the town of Raymond, where the river ends at the Lamprey River.
- New Hampshire GRANIT state geographic information system Archived 2013-08-03 at the Wayback Machine.
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