The Monmouth County Park System is an agency that maintains over 40 parks and recreational areas, in Monmouth County, New Jersey, United States.

Established in 1960, the Park System takes up 5.9% of Monmouth County's total acreage.

The entire Park System had a total of 8,668,914 visitors in 2021 compared to 645,354 residents of Monmouth County.

[1] S: Aberdeen to Freehold *Indicates the site is undeveloped **Historic Longstreet Farm is part of Holmdel Park In 2021, the Monmouth County Park System acquired 529 new acres of land, adding up to a grand total of 18,003 acres; 57% of this is forest, 25% is field, 6% is water, 3% is wetland, 9% is developed (impervious), and 3% is other.

The park system had six major events, with a total attendance of 119,024.