Green's Grant is a township in Coös County, New Hampshire, United States.

John Wentworth, British colonial governor of New Hampshire, made the grant to Lieutenant Francis Green of Boston, one of the last land grants that Wentworth made to soldiers of the French and Indian Wars.

[4] According to the United States Census Bureau, the grant has a total area of 3.7 square miles (9.5 km2), of which 1.8 acres (7,256 m2), or 0.08%, are covered by water.

[1] The Peabody River, a northward-flowing tributary of the Androscoggin River, runs through the center of the grant, joined by its tributaries, Nineteenmile Brook and Cowboy Brook from the east and the West Branch from the west.

The highest point in the grant is along its eastern boundary, on the lower slopes of Middle Carter Mountain, where the elevation reaches 2,540 feet (770 m) above sea level.