Salanter Akiba Riverdale High School (SAR High School) is a Modern Orthodox Yeshiva day school in Riverdale, New York City. It was founded in 2003 by Rabbi Naftali (Tully) Harcsztark. The school is affiliated with SAR Academy, which is also in Riverdale, Bronx, New York City and a little over fifty percent of the roughly 500 students attending SAR High School come from the Academy. The school's current Principal is Rabbi Tully Harcsztark, who has guided the creation of the school, both in terms of philosophy and structure, since the planning stages.