PIAA District 11

{{Use mdy dates|date=January 2025}}

{{Infobox organization

|name = PIAA District 11

|image =

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|status = Association

|purpose = High school athletic conference

|region_served = Coal Region
Lehigh Valley
Pocono Mountains

|membership = 53 schools

|language = English

|leader_title = Chairman

|leader_name = Robert Hartman

|main_organ =

|parent_organization = Pennsylvania Interscholastic Athletic Association

|affiliations = Pennsylvania Interscholastic Athletic Association, Schuylkill League, Eastern Pennsylvania Conference, Colonial League

|website = {{URL|http://www.districtxi.com/}}

|remarks = (570) 460-9075

}}

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.

District XI is one of the PIAA's 12 districts and comprises high schools mostly within the Lehigh Valley and a few surrounding counties.

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. District 11 owns many state records for various athletic championships and milestones.

Member schools are categorized by enrollment into classifications, differing in each of the various sports, including: A, AA, AAA, AAAA, AAAAA, and AAAAAA.