2018 Sydney International – Men's singles
| Men's singles | |
|---|---|
| 2018 Sydney International | |
| Champion | Daniil Medvedev |
| Runner-up | Alex de Minaur |
| Score | 1–6, 6–4, 7–5 |
| Draw | 28 (4 Q / 3 WC ) |
| Seeds | 8 |
Gilles Müller was the defending champion, but lost in the quarterfinals to Benoît Paire.
Daniil Medvedev won his first ATP title, defeating Alex de Minaur in the final, 1–6, 6–4, 7–5.