Western Australia Day, previously known as Foundation Day, is a public holiday in the state of Western Australia, celebrated on the first Monday in June. This day is to commemorate the founding of the Swan River Colony in 1829. However, in recent years, the celebration has also become to recognize the rich and diverse Aboriginal culture and heritage in Western Australia.

Typically on this day, many events and activities are held across the state to commemorate its diverse cultural history. These may range from community events, music festivals, sports events, or art exhibits, all celebrating Western Australian culture. The Western Australian of the Year Awards are also announced as part of the festivities to honour exceptional locals who make significant contributions to the state.

Perhaps what is unique about Western Australia Day is its additional emphasis on honoring the original inhabitants of Australia. Much effort has gone into using this day as a means of fostering reconciliation and mutual respect among all of Western Australia's communities. Thus, beyond celebrating the European colonization history, Western Australia Day is an opportunity to honor the timeless contribution of Aboriginal people to the state's cultural identity.