Howell High School (HHS) is a four-year comprehensive public high school serving students in ninth through twelfth grades located in Howell Township in Monmouth County, in the U.S. state of New Jersey, operating as one of six secondary schools of the Freehold Regional High School District. The school serves all students from Farmingdale and those from some portions of Howell Township. The school has been accredited by the Middle States Association of Colleges and Schools Commission on Elementary and Secondary Schools since 1970. Although located in Howell, the school has a Farmingdale mailing address.

Howell Township is a township in Monmouth County, in the U.S. state of New Jersey. The township is the largest municipality in the county by total area, comprised of about 61.21 square miles (158.5 km2). It is located in the New York metropolitan area and has been a steadily growing bedroom community of New York City. As of the 2020 United States census, the township's population was 53,537, its highest decennial count ever and an increase of 2,462 (+4.8%) from the 2010 census count of 51,075, which in turn reflected an increase of 2,172 (+4.4%) from the 48,903 counted in the 2000 census.