Valley Stream State Park is a state park located in Valley Stream, Nassau County, New York in the United States. The park is one of three state parks located in the Town of Hempstead (Long Island) and, like Hempstead Lake State Park, originated as a feeder reservoir for the Ridgewood Reservoir.
The park is a day-use facility, convenient to the Southern State Parkway (exit 15A). Pets are not permitted.
The park offers a nature trail, cross-country skiing, a playground and playing fields, horseshoe, volleyball, basketball, and bocce ball courts, picnic tables and pavilions, fireplaces and grills, and recreation programs.
Coordinates: 40°40′44″N 73°41′38″W / 40.679°N 73.694°W / 40.679; -73.694