2015 Australian Open – Men's singles

Novak Djokovic defeated Andy Murray in the final, 7–6(7–5), 6–7(4–7), 6–3, 6–0 to win the men's singles tennis title at the 2015 Australian Open. It was his fifth Australian Open title and his eighth major title overall. It was also Murray's fourth runner-up finish at the event, the most in the Open Era.

Stan Wawrinka was the defending champion, but lost in the semifinals to Djokovic. It was the third consecutive year that the two met at the Australian Open; on each occasion, their encounter went to a fifth set.

Roger Federer's streak of eleven consecutive Australian Open semifinals ended when he lost to Andreas Seppi in the third round. The defeat marked Federer's earliest exit from the tournament since 2001.

Nick Kyrgios became the first teenager to reach the quarterfinals since Andrei Cherkasov in 1990, and the first Australian to do so since Lleyton Hewitt in 2005. Kyrgios also became the first teenager to reach multiple major quarterfinals since Rafael Nadal in 2006.

Seeds
🇷🇸 Novak Djokovic (champion) Roger Federer (third round) 🇪🇸 Rafael Nadal (quarterfinals) Stan Wawrinka (semifinals) 🇯🇵 Kei Nishikori (quarterfinals) 🇬🇧 Andy Murray (final) 🇨🇿 Tomáš Berdych (semifinals) 🇨🇦 Milos Raonic (quarterfinals) 🇪🇸 David Ferrer (fourth round) 🇧🇬 Grigor Dimitrov (fourth round) Ernests Gulbis (first round) 🇪🇸 Feliciano López (fourth round) 🇪🇸 Roberto Bautista Agut (second round) Kevin Anderson (fourth round) 🇪🇸 Tommy Robredo (first round, retired because of a leg injury) 🇮🇹 Fabio Fognini (first round)

🇫🇷 Gaël Monfils (second round) 🇫🇷 Gilles Simon (third round) 🇺🇸 John Isner (third round) 🇧🇪 David Goffin (second round) 🇺🇦 Alexandr Dolgopolov (first round) 🇩🇪 Philipp Kohlschreiber (second round) Ivo Karlović (second round) 🇫🇷 Richard Gasquet (third round) 🇫🇷 Julien Benneteau (first round) 🇦🇷 Leonardo Mayer (second round) Pablo Cuevas (first round) 🇨🇿 Lukáš Rosol (second round) 🇫🇷 Jérémy Chardy (second round) 🇨🇴 Santiago Giraldo (second round) 🇪🇸 Fernando Verdasco (third round) 🇸🇰 Martin Kližan (second round, retired)