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 2020–21 school year, the school had an enrollment of 692 students and 57.0 classroom teachers (on an FTE basis), for a student–teacher ratio of 12.1:1. There were 71 students (10.3% of enrollment) eligible for free lunch and 12 (1.7% of students) eligible for reduced-cost lunch.