2018 Australian Open – Wheelchair men's singles

Shingo Kunieda defeated Stéphane Houdet in the final, 4–6, 6–1, 7–6(7–3) to win the men's singles wheelchair tennis title at the 2018 Australian Open. It was his ninth Australian Open singles title and 21st major singles title overall, and his first major championship in over two years.

Gustavo Fernández was the defending champion, but was defeated Nicolas Peifer in the quarterfinals in a rematch of the previous year's final.

Seeds
• # 🇦🇷 Gustavo Fernández (first round)

• # 🇬🇧 Alfie Hewett (first round)