Australian rules football in Western Australia (WA) is the most popular sport in the state. It is governed by the West Australian Football Commission (WAFC).

Rugby union in Western Australia describes the sport of rugby union being played and watched in the state of Western Australia. First introduced some time in 1868 it was the most popular football code until it was overtaken by Australian rules there in 1885. After a period of decline and recess between 1905 and 1927 it grew throughout the 20th century. The governing body is the Western Australia Rugby Union (RugbyWA).