Route 439 is a short state highway in the communities of Elizabeth, Union and Hillside in Union County, New Jersey. The highway is known as the Bayway, North Avenue and Elmora Avenue from the Goethals Bridge and Interstate 278 (I-278) and does a half-loop around Elizabeth, with the designation terminating at an intersection with Route 27 in Elizabeth. The highway originated as part of Route 28 south of the current intersection with Route 28 and Route S24 north of that intersection to Route 82. The current designation of Route 439 was assigned in the 1953 renumbering.

The Goethals Bridge is the name of a pair of cable-stayed bridge spans connecting Elizabeth, New Jersey, to Staten Island, New York, in the United States. The spans cross a strait known as Arthur Kill, and replaced a cantilever bridge span built in 1928. The bridge is operated by the Port Authority of New York and New Jersey.