The Australian high commissioner to Tonga is an officer of the Australian Department of Foreign Affairs and Trade and the head of the high commission of the Commonwealth of Australia in the Kingdom of Tonga. The position has the rank and status of an ambassador extraordinary and plenipotentiary and the high commissioner resides in Nukuʻalofa. The high commissioner, since April 2024, is Brek Batley.

List of high commissioners # Officeholder Residency Term start date Term end date Time in office Notes R. N. Birch Suva, Fiji years years H. W. Bullock years years Nukuʻalofa years Brian Smith years Rodney Hills years Howard Craig Brown years Jennifer E. Rawson years Andrew Mullin years Angus Macdonald years Colin Hill years Bruce Hunt years Thomas Roth years Brett Aldam years Andrew Ford years Adrian Morrison years Rachael Moore years Brek Batley incumbent

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