Waldwick High School is a four-year comprehensive public high school that serves students in ninth through twelfth grade from Waldwick, in Bergen County, United States, operating as part of the Waldwick Public School District. The school had been accredited by the Middle States Association of Colleges and Schools Commission on Elementary and Secondary Schools from 1969 until 2011, when the school's accreditation status was removed. As of the 2020–21 school year, the school had an enrollment of 460 students and 43.4 classroom teachers (on an FTE basis), for a student–teacher ratio of 10.6:1.