Spotswood High School is a four-year comprehensive public high school, serving students in ninth through twelfth grade in Spotswood, in Middlesex County, New Jersey, United States, operating as the lone secondary school of the Spotswood Public Schools. As of the 2014-15 school year, the school had an enrollment of 735 students and 66.0 classroom teachers, for a student–teacher ratio of 11.1:1.