Arlington High School is a comprehensive public high school located in Indianapolis, Indiana. Arlington was among the last public high schools to open within the Indianapolis Public Schools system. The school's athletic teams are named the Golden Knights. Enrollment is approximately 1,400 students.
The high school was established in 1961 to address rapid suburbanization in Indianapolis. In 2004, Arlington High School implemented a small school initiative. Traditional departments were done away with and five small schools, or schools within the school were created. Each school has its own academic dean, or principal, and the previous principal became the campus administrator. This district-pushed initiative was meant to improve student success. Due to decreased district enrollment and continued low performance, Arlington became a 7-12 community school beginning in the 2008-2009 academic year.