New Providence High School is a comprehensive public high school in the borough of New Providence, in Union County, New Jersey, United States, operating as the lone secondary school in the New Providence School District, serving students in ninth through twelfth grades. New Providence High School opened on September 8, 1958, with its first graduating class on June 23, 1960. The school has been accredited by the Middle States Association of Colleges and Schools Commission on Elementary and Secondary Schools since 1965 and received probationary accreditation in 2012. The school opened on September 8, 1958, and had its first graduating class of seniors in June 1960.

As of the 2019–20 school year, the school had an enrollment of 641 students and 58.6 classroom teachers (on an FTE basis), for a student–teacher ratio of 10.9:1. There were 18 students (2.8% of enrollment) eligible for free lunch and 4 (0.6% of students) eligible for reduced-cost lunch.

New Providence High School provides opportunities to earn college credits through Advanced Placement courses and through the Middle College Program in partnership with Fairleigh Dickinson University.

The school's principal is Brian Henry. His core administration team includes the assistant principal and the athletic director