List of Australian flags

This is a list of flags of different designs that have been used in Australia.

Other flags recognised under the Flags Act 1953
Sources:

Australian Border Force
The department names of Australia's border protection service have slightly changed over time, they are as follows;
 * Department of Trade and Customs (1 January 1901 – 1956)
 * Department of Customs and Excise (1956–1975)
 * Department of Police and Customs (1975–1975)
 * Department of Business and Consumer Affairs (1975–1982)
 * Department of Industry and Commerce (1982–1984)
 * Department of Industry, Technology and Commerce (1984–1985)
 * Australian Customs Service (1985–2009)
 * Australian Customs and Border Protection Service (2009–2015)
 * Australian Border Force (2015–present)