2018 Sydney International – Women's singles
| Women's singles | |
|---|---|
| 2018 Sydney International | |
| Champion | Angelique Kerber |
| Runner-up | Ashleigh Barty |
| Score | 6–4, 6–4 |
| Draw | 30 (4 Q / 2 WC ) |
| Seeds | 8 |
Johanna Konta was the defending champion, but lost in the first round to Agnieszka Radwańska in a rematch of the previous year's final.
Angelique Kerber won the title, defeating Ashleigh Barty in the final, 6–4, 6–4. Kerber won the title despite being two match points down in the second set in her first-round match against Lucie Šafářová.