Byram Hills High School (BHHS) is a four-year co-educational public secondary school located in Armonk, New York, United States. Its principal is Christopher Walsh. It is the only secondary school in the Byram Hills Central School District, and serves students from the towns of North Castle, Bedford, Mount Pleasant, and New Castle. The school currently enrolls over 800 students in grades 9–12. As of 2016, Byram Hills is ranked #30 in the state and #173 nationally by U.S. News & World Report.