Australian High Commission

Head of Mission

Australian High Commissioner to Singapore


His Excellency Allaster Cox 

Mr Allaster Cox is the Australian High Commissioner to Singapore.

Prior to this, he was the First Assistant Secretary Strategy & Development in the Office of Southeast Asia (2022-23), following his posting to Jakarta (2017-21) as Deputy Head of Mission.

Allaster has had a long career in Foreign Affairs and Trade (DFAT) working mainly on Southeast Asia, including in Canberra as Division Head for Southeast Asia (2013-17), and overseas as Ambassador to Vietnam (2008-12) and Brunei Darussalam (2001-03).

He has previously worked on the US relationship including as Branch Head for Asia, Americas and Trade (International Division) at the Department of the Prime Minister and Cabinet (2004-06) and later at US Branch in DFAT (2006-07). He was the Head of Policy Planning at DFAT in 2007-08 and has had earlier postings in Jakarta, Kuala Lumpur and Brunei.

Educated at Sydney University in Economics, Government and Law, he is married with two adult children.