The Amateur Athletic Union (AAU), founded in 1888, is one of the largest, non-profit, volunteer, sports organizations in the United States. A multi-sport organization, the AAU is dedicated exlusively to the promotion and development of amateur sports and physical fitness programs.

The philosophy of "Sports for all, Forever," is shared by over 500,000 participants and over 50,000 volunteers. Fifty-six (56) AAU Districts annually sanction more than 35 sports programs, 250 national championships, and over 30,000 age division events.