| 2+2 | Meeting of foreign and defence ministers from two countries |
| AIFFP | Australian Infrastructure Financing Facility for the Pacific |
| ANAO | Australian National Audit Office |
| ANCP | Australian NGO Cooperation Program |
| ANZAC | Australia and New Zealand Army Corps First world war army corps |
| APEC | Asia-Pacific Economic Cooperation |
| APIS | Australian Passport Information Service |
| ARGONAUT | Multinational civil-military cooperation exercise in Cyprus |
| ASEAN | Association of Southeast Asian Nations |
| ASEM | Asia–Europe Meeting |
| ASNO | Australian Safeguards and Non-Proliferation Office |
| ASX 200 | Australia’s lead stock exchange index |
| AUKMIN | Australia – United Kingdom Ministerial Consultations |
| AUSMIN | Australia – United States Ministerial Consultations |
| CALD | Cultural and linguistic diversity |
| CDPP | Commonwealth Director of Public Prosecutions |
| COP24 | 24th Conference of the Parties
2018 United Nations Climate Change Conference in Katowice, Poland |
| CPTPP | Comprehensive and Progressive Agreement for Trans-Pacific Partnership |
| CRT | Crisis Response Team |
| CTBTO | Comprehensive Nuclear-Test-Ban Treaty Organization |
| Da’esh | Arabic name of the Islamic State of Iraq and the Levant (ISIL) |
| DART | Disaster Assistance Response Team |
| E8 | Essential Eight Strategies to Mitigate Cyber Incidents |
| EABC | European Australian Business Council |
| EAS | East Asia Summit |
| EU | European Union |
| FBT | Fringe benefits tax |
| FEMAT | Fiji Emergency Medical Assistance Team |
| Five Eyes | Intelligence alliance between Australia, Canada, New Zealand, the United Kingdom and the United States |
| FSC | Financial Sector Commission |
| FTA | Free trade agreement |
| G20 | Group of Twenty (19 member countries and the European Union)—forum for international economic cooperation |
| IA-CEPA | Indonesia–Australia Comprehensive Economic Partnership Agreement |
| ICT | Information and communications technology |
| IAEA | International Atomic Energy Agency |
| IHRA | International Holocaust Remembrance Alliance |
| IOM | International Organization for Migration |
| IORA | Indian Ocean Rim Association |
| ISDS | Investor-state dispute settlement |
| ISIL | See Da’esh |
| ITU | International Telecommunications Union |
| JCPOA | Joint Comprehensive Plan of Action |
| KAFTA | Korea–Australia Free Trade Agreement |
| LGBTI | Lesbian, Gay, Bisexual, Transgender and Intersex |
| NATO | North Atlantic Treaty Organization |
| NCP | New Colombo Plan |
| NGO | Non-government organisation |
| NPDI | Non-Proliferation and Disarmament Initiative |
| NPT | Non-Proliferation Treaty |
| ODA | Official Development Assistance |
| OECD | Organisation for Economic Co-operation and Development |
| OPCW | Organisation for the Prohibition of Chemical Weapons |
| OPO | Overseas Property Office and Services |
| PACER Plus | Pacific Agreement on Closer Economic Relations Plus |
| Pacific Alliance | Latin American trade bloc comprising the nations bordering the Pacific (Chile, Colombia, Mexico and Peru) |
| PBS | Portfolio Budget Statements |
| PIDG | Private Infrastructure Development Group |
| PNG | Papua New Guinea |
| RCEP | Regional Comprehensive Economic Partnership |
| SDGs | Sustainable Development Goals |
| SFO | Staff and Family Support Office |
| UNCLOS | United Nations Convention on the Law of the Sea |
| UNGA | United Nations General Assembly |
| UNHCR | United Nations High Commissioner for Refugees |
| WHO | World Health Organization |
| WIL | Women in Leadership |
| WMD | Weapons of mass destruction |
| WTO | World Trade Organization |