The Independent Girls Schools Sports Association (Western Australia), or IGSSA (WA), is an interschool school sports organisation for private girls' schools in Western Australia. It was established in 1963 as the Independent Girls Schools Sports Association (Perth). IGSSA provides member schools with the opportunity to compete in a variety of sporting and cultural activities.
The association was launched with the inaugural Athletics Carnival at Perry Lakes Stadium in 1963. This was followed by the first Interschool Swimming Meet in 1965 at Beatty Park Aquatics Centre. In 1967, IGSA drew up a constitution for the Independent Girlsâ Schools Athletics Association. The aim was to organise interschool sporting fixtures, in which member schools of the Association of Principals of Independent Girls Schools Western Australia were participants, and to establish necessary financial arrangements. In the same year, the schools renamed themselves the Independent Girls Schools Sportsmistresses Association.
A review was held of IGSA sport in 1985. Subsequently the name was changed to the Independent Girls Schools Sports Association (Western Australia).