2018 Canberra Tennis International – Men's singles

Matthew Ebden was the defending champion but chose not to defend his title.

Jordan Thompson won the title after defeating Nicola Kuhn 6–1, 5–7, 6–4 in the final.

Seeds
• # 🇦🇺 Jason Kubler (withdrew)

• # 🇯🇵 Yoshihito Nishioka (semifinals)

• # 🇦🇺 Jordan Thompson (champion)

• # 🇦🇺 Alex Bolt (first round)

• # 🇦🇺 Marc Polmans (first round)

• # 🇯🇵 Hiroki Moriya (first round)

• # 🇯🇵 Yosuke Watanuki (quarterfinals)

• # 🇯🇵 Yasutaka Uchiyama (first round)