The youngest player to debut for Australia in Test cricket is, who made his first appearance at the age of 17 years against South Africa in 1953. He is followed by Pat Cummins, who debuted at 18 years and 193 days against South Africa in 2011, and Tom Garrett, who debuted at 18 years and 232 days in 1877 against England.
Recently, Sam Konstas made headlines by debuting at 19 years and 85 days during the Boxing Day Test against India on December 26, 2024. This achievement places him as the fourth youngest Australian Test debutant in history, surpassing the previous record held by Clem Hill, who debuted at 19 years and 96 days in 1907.
Here’s a summary of the youngest Test debutants for Australia:
| Rank | Player | Age | Opponent | Year |
| 1. | Ian Craig | 17 Years 239 Days | South Africa | 1953 |
| 2. | Pat Cummins | 18 Years 193 Days | South Africa | 2011 |
| 3. | Tom Garrett | 18 Years 232 Days | England | 1877 |
| 4. | Sam Konstas | 19 Years 25 Days | India | 2024 |
| 5. | Clem Hill | 19 Years 96 Days | England | 1907 |
Konstas’ debut was notable not only for his age but also for his performance; he scored a half-century, becoming the youngest player to achieve this milestone on debut against India.
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