Independent Schools Association (Australia)

The Independent Schools Association

Headquarters	Sydney, Australia
Membership	12 full member schools
Official language	English

The Independent Schools Association is a grouping of independent schools primarily based in Sydney, Australia, for the purposes of sporting competitions.

Members of the ISA often compete with members of the Great Public Schools (GPS) and Combined Associated Schools (CAS) in trial and representative fixtures.

Of NSW's 130 Rhodes Scholars 1904-2006, 2 have attended an ISA School.

The Competition in some sports is split into a 1st division and a second division with the stronger schools being in the 1st Division.