Australia is a country in itself, and while French is spoken by a small percentage of the population, it's not the official language.
The official language of Australia is English.
You might be thinking of French-speaking communities within Australia, which are mostly concentrated in:
* New South Wales: Sydney has a significant French-speaking population, particularly in the suburb of Leichhardt.
* Victoria: Melbourne also has a sizeable French-speaking community.
* Other states: French communities are also present in other states like Queensland, Western Australia, and Tasmania.
It's important to remember that these are communities within Australia, not separate countries.