The Meadowbrook State Parkway (also known as the Meadowbrook, the Meadowbrook Parkway or the MSP) is a 12.52 mi parkway in Nassau County, New York, in the United States. Its southern terminus is at a full cloverleaf interchange with the Bay and Ocean parkways in Jones Beach State Park. The parkway heads north, crossing South Oyster Bay and intersecting Loop Parkway before crossing onto the mainland and connecting to the Southern State Parkway in North Merrick