2018 Canberra Challenger – Singles

Dudi Sela was the defending champion but lost in the first round to Hugo Grenier.

Andreas Seppi won the title after defeating Márton Fucsovics 5–7, 6–4, 6–3 in the final.

Seeds
• # 🇮🇱 Dudi Sela (first round)

• # 🇩🇪 Florian Mayer (quarterfinals)

• # 🇪🇸 Guillermo García López (quarterfinals)

• # 🇰🇿 Mikhail Kukushkin (first round, retired)

• # 🇩🇴 Víctor Estrella Burgos (semifinals)

• # 🇭🇺 Márton Fucsovics (final)

• # 🇮🇹 Andreas Seppi (champion)

• # 🇷🇸 Laslo Đere (first round)