Sacred Heart High School is a co-educational private, Roman Catholic high school in Yonkers, New York. It is in the jurisdiction of the Roman Catholic Archdiocese of New York. It is the only Catholic high school in Yonkers. It was founded in 1923 and named after the most holy Sacred Heart of Jesus. At the time of its founding, the Sacred Heart community was predominantly composed of Irish-American immigrants, which has had a large influence on the school's image and mascot.