Byram Hills High School (BHHS) is a four-year co-educational public secondary school located in Armonk, New York. Its principal is Mr. Christopher Walsh. It is the only secondary school within 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 New York state and #173 nationally.