The Northern Valley Regional High School District is a comprehensive regional public high school district composed of two public high schools serving students in ninth through twelfth grades from Closter, Demarest, Harrington Park, Haworth, Northvale, Norwood and Old Tappan, suburban communities in Bergen County, in the U.S. state of New Jersey.

[6] The communities in the district, made up of upper-middle income families, consistently support the school budget, which provides for varied, in-depth college preparatory and career-oriented curricula.

Region III coordinates and develops special education programs for the 1,000 students with learning disabilities in the region, which includes the Northern Valley District, as well as those for the Alpine, Closter, Demarest, Harrington Park, Haworth, Northvale, Norwood and Old Tappan districts.

[12] The school faculty support and encourage student participation in the variety of sports, social and academic club activities.

The Northern Valley Regional High School district has its own internet radio station, WNVW.