Fastest fifties by Australian players in T20Is
| Player | Balls | Match | Venue | Date |
|---|---|---|---|---|
| MP Stoinis | 17 | Australia v Sri Lanka | Perth | 25-10-2022 |
| Travis Head | 17 | Australia v Scotland | Edinburgh | 04-09-2024 |
| DA Warner | 18 | Australia v West Indies | Sydney | 23-02-2010 |
| GJ Maxwell | 18 | Australia v Pakistan | Mirpur | 23-03-2014 |
| GJ Maxwell | 18 | Australia v Sri Lanka | Colombo (RPS) | 09-09-2016 |
| DA Warner | 19 | Australia v South Africa | Melbourne | 11-01-2009 |
| C Green | 19 | Australia v India | Hyderabad (Deccan) | 25-09-2022 |
| SR Watson | 20 | Australia v Sri Lanka | Pallekele | 08-08-2011 |
| DA Warner | 20 | Australia v New Zealand | Auckland | 16-02-2018 |
| CL White | 21 | Australia v New Zealand | Christchurch | 28-02-2010 |
| MEK Hussey | 22 | Australia v Pakistan | Gros Islet | 14-05-2010 |
| AJ Finch | 22 | Australia v Zimbabwe | Harare | 03-07-2018 |
| GJ Maxwell | 22 | Australia v Sri Lanka | Adelaide | 27-10-2019 |
| MP Stoinis | 22 | Australia v New Zealand | Dunedin | 25-02-2021 |
| Mitchell Marsh | 22 | Australia v South Africa | Durban | 30-08-2023 |
| David Warner | 22 | Australia v West Indies | Hobart | 09-02-2024 |
| GJ Bailey | 23 | Australia v West Indies | Colombo | 05-10-2012 |