| Wadleigh State Park | |
| Map: | New Hampshire |
| Relief: | 1 |
| Label: | Wadleigh State Park |
| Location: | 78 Wadleigh State Park, Sutton, New Hampshire, United States |
| Coords: | 43.3572°N -71.9453°W |
| Established: | 1934 |
| Designation: | New Hampshire state park |
| Administrator: | New Hampshire Division of Parks and Recreation |
| Website: | Wadleigh State Park |
Wadleigh State Park is a public recreation area located on the south shore of 170acres Kezar Lake in Sutton, New Hampshire. The state park has a bathhouse and playing fields and offers opportunities for swimming, picnicking, fishing, and boating.
The park was developed by workers with the State Emergency Work Agency and the Civilian Conservation Corps after the land was given to the state by the Village Improvement Society, which had raised money to make its initial purchase through public subscription. The 1938 Hurricane destroyed much the park including recently constructed buildings and vast amounts of its forest.
The park is on the Sunapee-Ragged-Kearsarge Greenway, a 75miles loop trail that also passes Mount Sunapee State Park, Winslow State Park, Rollins State Park, Gile, Kearsarge and Shadow Hill state forests, and the Bog Mountain Wildlife Management Area.