Allegheny High School is a former high school located in Pittsburgh, Pennsylvania and listed on the National Register of Historic Places.
Allegheny High School may also refer to:
East Allegheny High School, North Versailles, Pennsylvania North Allegheny Intermediate High School, McCandless, Pennsylvania North Allegheny Senior High School, Wexford, Pennsylvania South Allegheny Middle/Senior High School, McKeesport, Pennsylvania West Allegheny Senior High School, North Fayette Township, Pennsylvania
See also Alleghany High School (disambiguation) Allegany High School Allegheny College