Greenville Yard is a freight rail yard in the Port of New York and New Jersey. It is located on Upper New York Bay in Jersey City, New Jersey, adjacent and north of Port Jersey. Originally developed in 1904 by the Pennsylvania Railroad, it was later taken over by Conrail. It has been owned by the Port Authority of New York and New Jersey since 2010. It takes its name from the former municipality of Greenville, now part of the city.