| Champ: |  Viktor Troicki |
| Runner: |  Mikhail Kukushkin |
| Score: | 6–2, 6–3 |
| Draw: | 28 |
| Seeds: | 8 |
| Main Name: | Sydney International |
See main article: 2015 Apia International Sydney. Viktor Troicki won the title, defeating Mikhail Kukushkin in the final, 6–2, 6–3. It was the first time in ATP history that two qualifiers contested a final.[1]
Juan Martín del Potro was the defending champion, but lost to Kukushkin in the quarterfinals.
The top four seeds receive a bye into the second round.
See also: 1. 
Sergiy Stakhovsky (moved to main draw)
See also: 2. 
Teymuraz Gabashvili (qualifying competition)
See also: 3. Mikhail Kukushkin (qualified)
See also: 4. 
Carlos Berlocq (withdrew)
See also: 5. Andrey Golubev (second round)
See also: 6. 
Jarkko Nieminen (qualified)
See also: 7. Igor Sijsling (qualified)
See also: 8. 
Paul-Henri Mathieu (first round, retired)