Champions
20th Century
| Year | Winner(s) | Runner-up |
|---|---|---|
| 1948 | S. Robertson (Vic), G. Morris (Vic), Gough Whitlam (NSW), G. Bohman (NSW) | |
| 1949 | I.F. Jones | Gough Whitlam |
| 1950 | W.G. McDonald | |
21st Century
The highest-placed Australian at the annual World Quiz Championships.
| Year | National Champion | |
|---|---|---|
| 2007 | David Regal | |
| 2008 | Trevor Evans | |
| 2009 | David Vickers | |
| 2010 | David Regal | |
| 2011 | Issa Schultz | |
| 2012 | Ross Evans | |
| 2013 | Issa Schultz | |
| 2014 | Issa Schultz | |
| 2015 | Ross Evans | |
| 2016 | Issa Schultz | |
| 2017 | Issa Schultz | |
| 2018 | Issa Schultz | |
| 2019 | Ross Evans | |
| 2020 | Issa Schultz | |
| 2021 | Issa Schultz | |
| 2022 | Issa Schultz | |
| 2023 | Issa Schultz | |
| 2024 | Issa Schultz | |
| 2025 | Issa Schultz | |
| 2026 | Issa Schultz | |
Multiple individual titles
- 13 - Issa Schultz
- 3 - Ross Evans
Australian Quiz Championships
| Year |  Winner |
 Runner-up |
 Third place |
|---|---|---|---|
| 2024 | Issa Schultz | Ross Evans | Aaran Mohann |
| 2025 | Issa Schultz | David Howse | Aaran Mohann |
| 2026 | Issa Schultz | Aaran Mohann | Rohan Williams |
Australian Pairs Champions
| Year | Winners |
|---|---|
| 2012 | Issa Schultz and Honza Mikula |
| 2013 | Issa Schultz and David Regal |
| 2014 | Issa Schultz and Michael Logue |
| 2015 | Issa Schultz and Michael Logue |
| 2016 | Issa Schultz and Michael Logue |
| 2017 | Issa Schultz and Michael Logue |
| 2018 | Michael Sanders and Cory Nagel |
| 2019 | Brydon Coverdale and Chris Coverdale |
| 2020 | Issa Schultz and Michael Logue |
| 2021 | Not contested due to COVID-19 |
| 2022 | Gordon McGregor and Aaran Mohann |
| 2023 | Paul Bakker and Jason Taylor |
| 2024 | Ross Evans and Jamie Anderson |
| 2025 | Rohan Williams and Stirling Coates |
Australian Teams Champions
Contested as a four-person event from 2015-2020 inclusive, and as a three-person event in all subsequent years.
| Year | Winners |
|---|---|
| 2015 | Geoffrey Gettins, Lindon Johnsson, Graeme Mackie and Gordon McGregor |
| 2016 | Leon Derry, Ross Evans, Jim Huxley and Shane Francis |
| 2017 | Leon Derry, Ross Evans, Jim Huxley and Shane Francis |
| 2018 | Leon Derry, Ross Evans, Jim Huxley and Shane Francis |
| 2019 | Phil Denman, Derk de Graaf, Honza Mikula and Andrea Zijlstra |
| 2020 | Leon Derry, Ross Evans, Jim Huxley and Shane Francis |
| 2021 | Not contested due to COVID-19 |
| 2022 | Gordon McGregor, David Morgan and Aaran Mohann |
| 2023 | David Howse, Beau Howse and Brendan Pigott |
| 2024 | Gordon McGregor, David Morgan and Aaran Mohann |
| 2025 | Nick Clement, David Howse and Brendan Pigott |