See main article: 2024 Australian Open.
| Champ: |  Jannik Sinner |
| Runner: | Daniil Medvedev |
| Score: | 3–6, 3–6, 6–4, 6–4, 6–3 |
| Draw: | 128 |
| Seeds: | 32 |
| Type: | grandslamwc |
| Qual Type: | qualmenswomenssingles |
Jannik Sinner defeated Daniil Medvedev in the final, 3–6, 3–6, 6–4, 6–4, 6–3 to win the men's singles tennis title at the 2024 Australian Open. It was his first major singles title.
Sinner became both the first Italian to win the Australian Open and the second Italian man in the Open Era to win a singles major, after Adriano Panatta at the 1976 French Open.[1] He was the first new Australian Open men's singles champion since Stan Wawrinka in 2014.[2] Medvedev lost the final after winning the first two sets (as he did in 2022), making him the only player in the Open Era to lose two major finals after having a two-set lead and the second to lose each of his first three finals at the Australian Open, after Andy Murray.[3] Medvedev also set Open Era records for the most time spent playing at one edition of a singles major, at 24 hours and 17 minutes, and for the most sets played in a singles major, at 31.
Novak Djokovic was the defending champion, but lost in the semifinals to Sinner.[4] His loss ended a 33-match winning streak at the Australian Open and marked his first-ever defeat in an Australian Open semifinal.[5] Djokovic retained the world No. 1 singles ranking after Carlos Alcaraz lost in the quarterfinals.[6]
A record number of seeded players (30 of 32 seeds) advanced to the second round, for the first time since the introduction of the 32-seed system at the 2001 Wimbledon Championships.[7] [8] A record-breaking opening round saw 20 matches extended to five sets, the most for the tournament since the start of the Open Era.[9] The tournament overall featured a record-equaling 35 five-set matches, tying the Open Era record set at the 1983 US Open (surpassed soon after by the 2024 Wimbledon Championships).[10]
This marked the final Australian Open appearance for five-time finalist, three-time major champion, two-time Olympic gold medalist, and former world No. 1 Murray. He lost to Tomás Martín Etcheverry in the first round. It was also the final Australian Open appearance for 2020 finalist, 2020 US Open champion, and former world No. 3 Dominic Thiem. He lost to Félix Auger-Aliassime in the first round.
The following are the seeded players. Seedings are based on ATP rankings as of 8 January 2024. Rankings and points before are as of 15 January 2024.
| Seed | Rank | Player | Points before | Points defending | Points won | Points after | Status | |
|---|---|---|---|---|---|---|---|---|
| 1 | 1 |  Novak Djokovic | 11,055 | 2,000 | 800 | 9,855 | Semifinals lost to Jannik Sinner [4] | |
| 2 | 2 |  Carlos Alcaraz | 8,855 | 0 | 400 | 9,255 | Quarterfinals lost to Alexander Zverev [6] | |
| 3 | 3 | Daniil Medvedev | 7,555 | 90 | 1,300 | 8,765 | Runner-up, lost to Jannik Sinner [4] | |
| 4 | 4 | Jannik Sinner | 6,490 | 180 | 2,000 | 8,310 | Champion, defeated Daniil Medvedev [3] | |
| 5 | 5 | Andrey Rublev | 5,010 | 360 | 400 | 5,050 | Quarterfinals lost to Jannik Sinner [4] | |
| 6 | 6 | Alexander Zverev | 4,275 | 45 | 800 | 5,030 | Semifinals lost to Daniil Medvedev [3] | |
| 7 | 7 | Stefanos Tsitsipas | 4,025 | 1,200 | 200 | 3,025 | Fourth round lost to  Taylor Fritz [12] | |
| 8 | 8 | Holger Rune | 3,815 | 180 | 50 | 3,685 | ||
| 9 | 9 |  Hubert Hurkacz | 3,320 | 180 | 400 | 3,540 | Quarterfinals lost to Daniil Medvedev [3] | |
| 10 | 10 |  Alex de Minaur | 2,950 | 180 | 200 | 2,970 | Fourth round lost to Andrey Rublev [5] | |
| 11 | 11 |  Casper Ruud | 2,910 | 45 | 100 | 2,965 | Third round lost to  Cameron Norrie [19] | |
| 12 | 12 | Taylor Fritz | 2,840 | 45 | 400 | 3,195 | Quarterfinals lost to Novak Djokovic [1] | |
| 13 | 13 | Grigor Dimitrov | 2,775 | 90 | 100 | 2,785 | Third round lost to Nuno Borges | |
| 14 | 14 | Tommy Paul | 2,670 | 720 | 100 | 2,050 | Third round lost to Miomir Kecmanović | |
| 15 | 15 | Karen Khachanov | 2,430 | 720 | 200 | 1,910 | Fourth round lost to Jannik Sinner [4] | |
| 16 | 16 | Ben Shelton | 2,225 | 360 | 100 | 1,965 | Third round lost to  Adrian Mannarino [20] | |
| 17 | 17 | Frances Tiafoe | 2,100 | 90 | 50 | 2,060 | Second round lost to  Tomáš Macháč | |
| 18 | 18 | Nicolás Jarry | 1,870 | 70 | 10 | 1,810 | First round lost to Flavio Cobolli [Q] | |
| 19 | 22 | Cameron Norrie | 1,710 | 90 | 200 | 1,820 | Fourth round lost to Alexander Zverev [6] | |
| 20 | 19 | Adrian Mannarino | 1,765 | 45 | 200 | 1,920 | Fourth round lost to Novak Djokovic [1] | |
| 21 | 20 | Ugo Humbert | 1,765 | 90 | 100 | 1,775 | Third round lost to Hubert Hurkacz [9] | |
| 22 | 21 |  Francisco Cerúndolo | 1,760 | 90 | 50 | 1,720 | Second round lost to  Fábián Marozsán | |
| 23 | 24 | 1,530 | 45 | 50 | 1,535 | Second round lost to Nuno Borges | ||
| 24 | 25 | Jan-Lennard Struff | 1,511 | 35 | 50 | 1,526 | ||
| 25 | 28 | Lorenzo Musetti | 1,440 | 10 | 50 | 1,480 | Second round lost to Luca Van Assche | |
| 26 | 29 | Sebastián Báez | 1,435 | 10 | 100 | 1,525 | Third round lost to Jannik Sinner [4] | |
| 27 | 30 |  Félix Auger-Aliassime | 1,425 | 180 | 100 | 1,345 | Third round lost to Daniil Medvedev [3] | |
| 28 | 31 | Tallon Griekspoor | 1,410 | 90 | 100 | 1,420 | Third round lost to Arthur Cazaux [WC] | |
| 29 | 26 | Sebastian Korda | 1,480 | 360 | 100 | 1,220 | Third round lost to Andrey Rublev [5] | |
| 30 | 32 | Tomás Martín Etcheverry | 1,375 | 45 | 100 | 1,430 | Third round lost to Novak Djokovic [1] | |
| 31 | 27 |  Alexander Bublik | 1,459 | 10 | 10 | 1,459 | First round lost to  Sumit Nagal [Q] | |
| 32 | 23 | Jiří Lehečka | 1,555 | 360 | 50 | 1,245 | Second round lost to Alex Michelsen |
See main article: 2024 Australian Open – Men's singles qualifying.
The entry list was released by Tennis Australia based on the ATP rankings for the week of 4 December 2023.[11]
‡ – withdrew from entry list
§ – withdrew from main draw