 Caumsett State Parkway | |
|---|---|
 Proposed route highlighted in red | |
| Route information | |
| Maintained by NYSDOT | |
| Status | Never built; much of right-of-way repurposed as parkland |
| History | Formerly proposed parkway |
| Major junctions | |
| South end |   Bethpage State Parkway / Northern State Parkway in Plainview |
| North end | Caumsett State Historic Park in Lloyd Harbor |
| Location | |
| Country | United States |
| State | New York |
| Counties | Nassau, Suffolk |
| Highway system | |
The Caumsett State Parkway (also known as the Caumsett Parkway) was a proposed controlled-access parkway on the North Shore of Long Island, New York, between Plainview in Nassau County and the Caumsett State Historic Park in Lloyd Harbor, Suffolk County.
The parkway was intended to link the Causett State Historic Park in Lloyd Harbor to a northerly extension of the Bethpage State Parkway at the Northern State Parkway in Plainview—and would have linked Caumsett State Historic Park with Bethpage State Park via the extended Bethpage State Parkway. Much of the unbuilt parkway's right-of-way has since been transformed into parks with trails and other recreational amenities.