| Mount Sunapee State Park | |
| Map: | USA New Hampshire |
| Map Size: | 200 |
| Relief: | 1 |
| Location: | Newbury, New Hampshire, United States |
| Coordinates: | 43.3211°N -72.0623°W |
| Designation: | New Hampshire state park |
| Established: | 1948 |
| Administrator: | New Hampshire Division of Parks and Recreation |
| Website: | Mount Sunapee State Park |
Mount Sunapee State Park is a public recreation area in Newbury, New Hampshire. The state park's nearly include most of Mount Sunapee and a beach area on Lake Sunapee. Park activities include swimming, hiking, camping, skiing, fishing, picnicking, and non-motorized boating. The park's ski area is operated as Mount Sunapee Resort under the management of Vail Resorts Inc.
The park's beach, also known as Newbury Beach, features a bathhouse, store, canoe and kayak rentals, playground, and restricted boat launch. A seasonal campground is located off NH Route 103, up a winding mountain road accessed through Mount Sunapee Resort.
The state park's extensive trail system is used in all seasons for hiking and in winter for snowshoeing.
From the ski area parking, the Summit Trail travels 2miles along the western slope to the summit, where it meets the Solitude Trail for a walk to Lake Solitude and White Ledges. The Solitude Trail then links to several trails, notably the popular Andrew Brook Trail and the steeper Newbury Trail, both heading eastward, and to the M-S Greenway as it heads south along Sunapee Mountain toward Pillsbury State Park.