District 11 (often referenced with the Roman Numerals District XI) of the Pennsylvania Interscholastic Athletic Association (PIAA) is an interscholastic athletic association in eastern Pennsylvania.
The district is broadly considered one of the most competitive high school athletic divisions in the nation with many of its athletes going on to compete in the Olympics and professional sports, including the MLB, NBA, and NFL.
Member schools are categorized by enrollment into classifications, differing in each of the various sports, including: A, AA, AAA, AAAA, AAAAA, and AAAAAA.
Although it is named the Schuylkill League, teams from Carbon, Columbia, and Dauphin counties are included.
The Schuylkill League also includes Our Lady of Lourdes Regional School in Northumberland County, which competes in PIAA District 4.