Bergenline Avenue is a major commercial district in the North Hudson section of Hudson County, New Jersey, United States. The north–south streets passes through Union City, West New York, Guttenberg, and North Bergen. Its southern end is at Union City's Second Street, the north boundary of Washington Park. From there north to 47th Street, the street is one-way southbound; New York Avenue and Kennedy Boulevard serve northbound traffic. Between 48th and 49th Streets, elevators on the west side provide access to the underground Bergenline Avenue station of the Hudson-Bergen Light Rail. After passing through West New York and Guttenberg and into North Bergen, the street meets North Hudson Park, running along its west side from 79th Street to the Bergen County line through the community of Nungesser's and crosses Kennedy Boulevard. The northernmost 0.04 miles (0.064 km) of the route from Kennedy Boulevard to the Bergen County line is designated as County Route 721. North of the county line the street name becomes Anderson Avenue, which is the major commercial district for Fairview, Cliffside Park, and Fort Lee.

North Hudson is the area in the northern part of Hudson County, New Jersey, situated on the west bank of the Hudson River, mostly atop the Hudson Palisades. It comprises Weehawken, Union City, West New York, Guttenberg, and North Bergen.