The Long Island Motor Parkway, also known as the Vanderbilt Parkway, Vanderbilt Motor Parkway, or Motor Parkway, was a limited-access parkway on Long Island, New York, in the United States. It was the first highway designed for automobile use only. The parkway was privately built by William Kissam Vanderbilt II with overpasses and bridges to remove most intersections. It officially opened on October 10, 1908. It closed in 1938 when it was taken over by the state of New York in lieu of back taxes. Parts of the parkway survive today, used as sections of other roads or as a bicycle trail.

A limited-access road, known by various terms worldwide, including limited-access highway, dual-carriageway, expressway, and partial controlled-access highway, is a highway or arterial road for high-speed traffic which has many or most characteristics of a controlled-access highway, including limited or no access to adjacent property, some degree of separation of opposing traffic flow, use of grade separated interchanges to some extent, prohibition of slow modes of transport, such as bicycles, horse-drawn vehicles or ridden horses, or self-propelled agricultural machines; and very few or no intersecting cross-streets or level crossings. The degree of isolation from local traffic allowed varies between countries and regions. The precise definition of these terms varies by jurisdiction.