As an Australian, which countries can I go to without a visa?

In 2014 holders of an Australian passport can visit 168 countries and territories visa-free or with visa on arrival

These are the countries which an Australian can visit without visa:

Africa:

  • Botswana
  • Gambia
  • Lesotho
  • Malawi
  • Mauritius
  • Morocco
  • Namibia
  • South Africa
  • Swaziland
  • Tunisia

Americas:

  • United States
  • Mexico
  • Nicaragua
  • Panama
  • Peru
  • Saint Kitts and Nevis
  • Saint Lucia
  • Saint Vincent and the Grenadines
  • Uruguay
  • Venezuela
  • Antigua and Barbuda
  • Bahamas
  • Barbados
  • Belize
  • Bolivia
  • Canada
  • Colombia
  • Costa Rica
  • Dominica
  • Dominican Republic
  • Ecuador
  • El Salvador
  • Grenada
  • Guatemala
  • Guyana
  • Haiti
  • Honduras
  • Jamaica

Asia:

  • Georgia
  • Israel
  • Japan
  • South Korea
  • Kyrgyzstan
  • Malaysia
  • Philippines
  • Singapore
  • Thailand

Europe:
All countries except: Russia, Ukraine, Belarus

Oceania:

  • Fiji
  • Kiribati
  • Micronesia
  • Vanuatu

Australians can visit a lot of other countries with visa on arrival, which can be done at the borders and for some countries can be applied easily online before arrival. Average costs of visas on arrival are USD 30.

Please refer to the Wikipedia article for the full list:
Visa requirements for Australian citizens
Neither Wikipedia nor this Quora answer must be treated as an official reference. Always check with the country embassy in Australia.