Northern Valley is the name for a region of New Jersey, United States, contained within Bergen County. The region consists of fifteen municipalities: Alpine, Bergenfield, Closter, Cresskill, Demarest, Dumont, Englewood, Englewood Cliffs, Harrington Park, Haworth, Northvale, Norwood, Old Tappan, Rockleigh, and Tenafly.
Several area entities are named after the valley:
- Northern Valley Regional High School District serving students from Closter, Demarest, Harrington Park, Haworth, Northvale, Norwood, and Old Tappan. It operates two schools:
- Northern Valley Regional High School at Demarest, serving Closter, Demarest, and Haworth
- Northern Valley Regional High School at Old Tappan, serving Harrington Park, Northvale, Norwood, and Old Tappan with students from Rockleigh attending as part of a sending/receiving relationship
- Northern Valley Suburbanite, a local newspaper (does not serve Bergenfield and Dumont)
- Numerous businesses in the region have Northern Valley in their name