Allentown Central Catholic High School (ACCHS), often referred to as Central Catholic or Central, is a private, parochial school located at 301 N. 4th Street in Allentown, Pennsylvania. The school is managed by the Roman Catholic Diocese of Allentown, and predominantly serves students from the Lehigh Valley region of eastern Pennsylvania.

The Diocese of Allentown is a Latin Church ecclesiastical jurisdiction, or diocese, of the Catholic Church in the Lehigh Valley region of Pennsylvania in the United States. It is a suffragan diocese in the ecclesiastical province of the metropolitan Archdiocese of Philadelphia.