Old River (New Hampshire)

The Old River is a 3.1 mi stream located in southeastern New Hampshire in the United States. It is a tributary of the Taylor River, the primary tributary of the Hampton River estuary connected to the Atlantic Ocean.

The river's entire course is within Hampton, New Hampshire. It rises north of the center of town, in a wetland, and flows west, past the Interstate 95/NH 101 interchange at the Hampton tollbooths. The river continues southwest, passing through Car Barn Pond, and reaches the Taylor River upstream from Coffins Mill.