Defending champion Roger Federer defeated Marin Čilić in the final, 6–2, 6–7(5–7), 6–3, 3–6, 6–1 to win the men's singles tennis title at the 2018 Australian Open. It was his record-equalling sixth Australian Open title (tied with Roy Emerson and Novak Djokovic), and his record-extending 20th and last major title overall. At old, Federer was the oldest man to win a major singles title since Ken Rosewall in 1972. Čilić became the first Croatian to reach an Australian Open singles final.
This was the first time since the 2008 Wimbledon Championships that two unseeded players (Chung Hyeon and Kyle Edmund) reached the semifinals of a men's singles major, and the first time at the Australian Open since 1999. Chung became the first South Korean to reach a major quarterfinal and semifinal.
This was the last Australian Open appearance for former world No. 3 and US Open champion Juan Martin del Potro; he lost to Tomáš Berdych in the third round.
Seeds All seedings per ATP rankings.
Draw
Finals
Top half
Section 1
Section 2
Section 3
Section 4
Bottom half
Section 5
Section 6
Section 7
Section 8
Other entry information
Wildcards
Qualifying
References General
Draw 2018 Australian Open – Men's draws and results at the International Tennis Federation
Specific