The Johns River (also called "John's River"), in northern New Hampshire, arises at Cherry Pond in Jefferson and runs approximately 14 miles (23 km), generally northwest, to the Connecticut River.

[1] It passes through Hazens Pond, near the Mount Washington Regional Airport, traverses the town of Whitefield, where it is crossed by U.S. Route 3, and then crosses the town of Dalton before joining the Connecticut.

It is named for an early hunter and trapper of the area, John Glines, who established a fishing and hunting camp in the area in the 18th century.

The watershed area is bounded by the eastern slope of the Dalton Mountain Range, the southern slope of Prospect Mountain and the western slope of Cherry Mountain (also called Mount Martha).

This article related to a river in New Hampshire is a stub.