Merrick Road, known as Merrick Boulevard inside New York City, is an east–west urban arterial in Queens, Nassau, and Suffolk counties, New York, United States. It runs east from the Queens neighborhood of Jamaica through Merrick past the county line between Nassau and Suffolk into Amityville, where it becomes Montauk Highway at the Amityville–Copiague village/hamlet line. The easternmost portion of Merrick Road, from Carman Mill Road to its eastern terminus, signed as part of New York State Route 27A (NY 27A). At one time, the entire length of Merrick Road was signed as NY 27A; currently, the entire portion within Nassau County is currently designated as the unsigned County Route 27 (CR 27). Merrick Road travels along an old right-of-way that was one of the original paths across southern Long Island, stretching from Queens to Montauk Point.