Suncook is a census-designated place (CDP) in Merrimack County, New Hampshire, United States.

[2] Approximately two-thirds of Suncook is located in the town of Pembroke, with the remainder in Allenstown.

Much of the center of the village is occupied by 19th-century factory buildings which once used the river's energy for hydropower.

[citation needed] Much of Suncook's late 19th-century commercial village center has been listed on the National Register of Historic Places.

The Suncook River runs through the center of the village and forms the boundary between the two towns.

U.S. Route 3 runs through the east side of the CDP, leading northwest 7 miles (11 km) to Concord, the capital of New Hampshire, and south 10 miles (16 km) to Manchester, the state's largest city.