Frelinghuysen refers to a prominent American family known for its political influence, particularly in the state of New Jersey. The most notable member is Henry Frelinghuysen, who served as a U.S. Senator in the 19th century. The family has a rich history, with roots tracing back to the early colonial period. In addition to politics, the name is associated with Frelinghuysen Township, a municipality in Sussex County, New Jersey. This area is known for its rural charm and outdoor recreational opportunities, reflecting the natural beauty of the region. The township is part of the larger Skylands Region, which attracts visitors for its scenic landscapes.