2016 Apia International Sydney – Men's singles

Viktor Troicki was the defending champion and successfully defended his title, defeating Grigor Dimitrov in the final, 2–6, 6–1, 7–6(9–7). He saved a championship point in the third-set tiebreak.

Seeds
The top four seeds received a bye into the second round. • #🇦🇺 Bernard Tomic (quarterfinals, retired)

• #🇦🇹 Dominic Thiem (second round, retired)

• #🇷🇸 Viktor Troicki (champion)

• #🇧🇬 Grigor Dimitrov (final)

• #🇮🇹 Andreas Seppi (second round)

• #🇫🇷 Jérémy Chardy (quarterfinals)

• #🇦🇷 Leonardo Mayer (first round)

• #🇺🇦 Alexandr Dolgopolov (quarterfinals)

Seeds
• # 🇺🇿 Denis Istomin (moved to main draw)

• # 🇺🇦 Sergiy Stakhovsky (first round)

• # 🇰🇿 Mikhail Kukushkin (qualified)

• # 🇫🇷 Nicolas Mahut (qualified)

• # 🇪🇸 Íñigo Cervantes (qualifying competition, lucky loser)

• # 🇷🇸 Dušan Lajović (qualifying competition)

• # Ernests Gulbis (first round)

• # 🇧🇦 Damir Džumhur (first round)

Qualifiers
• # 🇺🇸 Alexander Sarkissian

• # 🇩🇪 Maximilian Marterer

• # 🇰🇿 Mikhail Kukushkin

• # 🇫🇷 Nicolas Mahut

Lucky losers
• # 🇪🇸 Íñigo Cervantes