Borderland State Park is an American history and nature preserve with public recreational features located in the towns of Easton and Sharon, Massachusetts. The state park encompasses 1,843 acres (746 ha) surrounding the Ames Mansion, which was built in 1910. The area was listed on the National Register of Historic Places as Borderland Historic District in 1997. It is operated by the Massachusetts Department of Conservation and Recreation, with an appointed advisory council that participates in policy decision-making.

Easton is a town in Bristol County, Massachusetts, United States. The population was 25,058 at the 2020 census. It is part of the Greater Boston area.