| Tournament details | |
|---|---|
| Country | Australia New Zealand |
| Dates | 9 February – 7 October 2023 |
| Teams | 778 (qualifying competition) 32 (main competition) |
| Final positions | |
| Champions | Sydney FC (2nd title) |
| Runner-up | Brisbane Roar |
| AFC Champions League Two | Sydney FC |
| Tournament statistics | |
| Matches played | 31 |
| Goals scored | 119 (3.84 per match) |
| Attendance | 70,454 (2,273 per match) |
| Top goal scorer(s) | Lachlan Brook (5 goals) |
The 2023 Australia Cup was the tenth season of the Australia Cup, the main national soccer knockout cup competition in Australia. Thirty-two teams contested the competition proper, with the winner qualifying for the 2024–25 AFC Champions League Two.
Macarthur FC were the defending champions, but were eliminated by Campbelltown City in the Round of 32.
Sydney FC won its second Australia Cup after defeating Brisbane Roar in the final. This also resulted in qualification to the group stage of the AFC's 2024–25 AFC Champions League Two competition.