The Pennsylvania Independent Schools Athletic Association (PAISAA) is the recognized entity for the support of interscholastic athletic programs for independent schools in the state of Pennsylvania. PAISAA offers professional development opportunities for membership, preserves and enhances existing state events, and works to create additional state events through the development of coaches' associations for each sport. The association is committed to the foundation pillars of interscholastic athletics-integrity, sportsmanship, participation, and leadership.

PAISAA is recognized by the PIAA and is an affiliate member of the National Federation of High Schools.

The Pennsylvania Independent Schools Athletic Association (PAISAA), founded in 2007, unites independent schools across the state of Pennsylvania in fostering healthy athletic rivalries, meaningful competition, and the values of sportsmanship. PAISAA supports postseason events and championships for interscholastic athletics programs for independent schools across the state, with State Championship and Commonwealth Cup divisional competition.