Kearny High School is a four-year comprehensive public high school serving students in ninth through twelfth grades from Kearny in Hudson County, New Jersey, United States, and operating as the lone secondary school of the Kearny School District. As of the 2020–21 school year, the school had an enrollment of 1,750 students and 132.5 classroom teachers (on an FTE basis), for a student–teacher ratio of 13.2:1. There were 821 students (46.9% of enrollment) eligible for free lunch and 134 (7.7% of students) eligible for reduced-cost lunch.