2003 Australian Open – Boys' singles
| Boys' singles | |
|---|---|
| 2003 Australian Open | |
| Champion | Marcos Baghdatis |
| Runner-up | Florin Mergea |
| Score | 6–4, 6–4 |
Clément Morel was the defending champion, but did not compete in the Juniors in this year.
Marcos Baghdatis defeated Florin Mergea (6–4, 6–4) in the final.