Old Bridge High School (formed from combining the former Cedar Ridge and Madison Central High Schools) is a four-year comprehensive public high school that serves students in ninth through twelfth grades from Old Bridge Township in Middlesex County, New Jersey, United States, operating as the lone secondary school of the Old Bridge Township Public Schools. The school is located on County Route 516 in Old Bridge Township, however, it is assigned a Matawan mailing address. The school has been accredited by the Middle States Association of Colleges and Schools Commission on Elementary and Secondary Schools since 1970.