The High Commissioner of Australia to Tuvalu 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 Tuvalu.

The position has the rank and status of an ambassador extraordinary and plenipotentiary and the High Commissioner resides in Funafuti.

The High Commissioner since August 2023 is Brenton Garlick.

There has been a resident Australian High Commissioner in Tuvalu since October 2018, and the Australian High Commission is one of only two resident diplomatic missions in Tuvalu, the other being the Embassy of Taiwan Prior to the independence of Tuvalu on 1 October 1978, the High Commission in Suva was accredited to Tuvalu, with the High Commissioner (1977–2014) and Deputy High Commissioner (2014–2018) serving as the non-resident accredited High Commissioner to Tuvalu.

In the 2018 Australian Federal budget, funding was allocated to establish a High Commission in Tuvalu, becoming one of only two diplomatic missions in Tuvalu (the other being the Embassy of Taiwan).