In the late 1940s and 1950s the Australian National Quiz Championships were run and broadcast live by ABC Radio. The quiz was arranged to promote the Federal Government's security loans for post-war reconstruction. Future Prime Minister Gough Whitlam was joint winner in 1948 and runner-up in 1949.
From 2007 the highest-scoring Australian at the World Quizzing Championship has been recognised as the national champion.
In 2024 Quizzing Australia launched a stand-alone domestic event, the Australian Quiz Championships.
Contested as a four-person event from 2015-2020 inclusive, and as a three-person event in all subsequent years.