Louis E. Dieruff High School, typically referred to as Dieruff High School, is a large, urban public high school in Allentown, Pennsylvania. It is located at 815 North Irving Street in Allentown. The school serves students in grades nine through 12 from the eastern and southern parts of the city and is part of the Allentown School District.

William Allen High School, often referred to as Allen High School or simply Allen, is one of two large, urban public high schools of the Allentown School District in Allentown, Pennsylvania. The school provides public education for grades 9 through 12. William Allen High School is located at 106 N. 17th Street in Allentown. It serves students from center city and the city's westside. The city's other public high school, Dieruff High School, serves students from Allentown's eastern and southern sections. Until Dieruff's opening in 1959, William Allen High School was known as Allentown High School.