Matawan Regional High School is a four-year regional public high school located in Aberdeen Township, United States, serving students in ninth through twelfth grades as the lone secondary school of the Matawan-Aberdeen Regional School District. Serving students from Aberdeen Township and Matawan, it is one of Monmouth County's largest schools. The school has been accredited by the Middle States Association of Colleges and Schools since 1951. The school mascot is a husky.

As of the 2023–24 school year, the school had an enrollment of 1,154 students and 97.0 classroom teachers (on an FTE basis), for a student–teacher ratio of 11.9:1. There were 176 students (15.3% of enrollment) eligible for free lunch and 56 (4.9% of students) eligible for reduced-cost lunch.