# Swimming at the 2024 World Aquatics Championships – Men's 100 metre freestyle

The Men's 100 metre freestyle competition at the 2024 World Aquatics Championships was held on 14 and 15 February 2024.

## Records

Prior to the competition, the existing world and championship records were as follows.
| World record | David Popovici (ROU) | 46.86 | Rome, Italy | 13 August 2022 |
| Competition record | César Cielo (BRA) | 46.91 | Rome, Italy | 30 July 2009 |
The following records were established during the competition:
| Date | Round | Name | Nationality | Time | Record |
| 11 February | Final* | Pan Zhanle | China | 46.80 | WR |
* Split from the men's 4 × 100 m freestyle relay

## Results
### Heats

The heats were started on 14 February at 09:45.
| Rank | Heat | Lane | Name | Nationality | Time | Notes |
| 1 | 10 | 4 | Pan Zhanle | China | 47.82 | Q |
| 2 | 11 | 4 | Alessandro Miressi | Italy | 47.94 | Q |
| 3 | 12 | 5 | Nándor Németh | Hungary | 48.03 | Q |
| 4 | 12 | 4 | Matt Richards | Great Britain | 48.05 | Q |
| 5 | 10 | 5 | Matt King | United States | 48.11 | Q |
| 6 | 11 | 3 | Hwang Sun-woo | South Korea | 48.15 | Q |
| 7 | 10 | 3 | Andrej Barna | Serbia | 48.31 | Q |
| 8 | 11 | 7 | Mikel Schreuders | Aruba | 48.59 | Q |
| 9 | 11 | 6 | Wang Haoyu | China | 48.61 | Q |
| 10 | 11 | 2 | Manuel Frigo | Italy | 48.65 | Q |
| 11 | 11 | 1 | Sergio De Celis Montalbán | Spain | 48.68 | Q |
| 12 | 12 | 3 | Diogo Ribeiro | Portugal | 48.72 | Q |
| 13 | 12 | 6 | Cameron Gray | New Zealand | 48.81 | Q |
| 14 | 11 | 8 | Björn Seeliger | Sweden | 48.84 | Q |
| 15 | 12 | 2 | Kai Taylor | Australia | 48.88 | Q |
| 16 | 12 | 1 | Kamil Sieradzki | Poland | 48.93 | Q |
| 17 | 11 | 5 | Jack Cartwright | Australia | 49.01 | |
| 18 | 11 | 0 | Chad le Clos | South Africa | 49.04 | |
| 19 | 12 | 0 | Alberto Mestre | Venezuela | 49.09 | |
| 20 | 10 | 6 | Szebasztián Szabó | Hungary | 49.10 | |
| 21 | 9 | 7 | Matej Duša | Slovakia | 49.12 | NR |
| 22 | 10 | 7 | Heiko Gigler | Austria | 49.16 | |
| 23 | 10 | 9 | Tomas Lukminas | Lithuania | 49.18 | |
| 24 | 10 | 2 | Javier Acevedo | Canada | 49.19 | |
| 24 | 10 | 0 | Shane Ryan | Ireland | 49.19 | |
| 26 | 11 | 9 | Vladyslav Bukhov | Ukraine | 49.24 | |
| 27 | 10 | 8 | Breno Correia | Brazil | 49.29 | |
| 28 | 12 | 8 | Jonathan Tan | Singapore | 49.32 | |
| 29 | 10 | 1 | Jorge Iga | Mexico | 49.35 | |
| 30 | 9 | 6 | Wesley Roberts | Cook Islands | 49.41 | |
| 31 | 12 | 9 | Adilbek Mussin | Kazakhstan | 49.45 | |
| 32 | 12 | 7 | Denis Loktev | Israel | 49.50 | |
| 33 | 9 | 3 | Patrick Dinu | Romania | 49.53 | |
| 34 | 9 | 8 | Kaloyan Bratanov | Bulgaria | 49.67 | |
| 35 | 9 | 1 | Artur Barseghyan | Armenia | 50.19 | |
| 36 | 9 | 4 | Dulyawat Kaewsriyong | Thailand | 50.35 | |
| 37 | 7 | 6 | Yousuf Al-Matrooshi | United Arab Emirates | 50.49 | |
| 38 | 8 | 7 | Javier Núñez | Dominican Republic | 50.54 | |
| 39 | 9 | 9 | Tanish Mathew | India | 50.58 | |
| 40 | 8 | 3 | Leo Nolles | Uruguay | 50.73 | |
| 41 | 3 | 9 | Kyle Abeysinghe | Sri Lanka | 50.99 | |
| 42 | 8 | 6 | Marvin Johnson | Bahamas | 51.01 | |
| 43 | 8 | 5 | Joe Kurniawan | Indonesia | 51.15 | |
| 44 | 6 | 4 | Benjamin Schnapp | Chile | 51.29 | |
| 45 | 8 | 4 | Samyar Abdoli | Iran | 51.35 | |
| 46 | 7 | 4 | Isaac Beitia | Panama | 51.40 | |
| 47 | 7 | 5 | Matthieu Seye | Senegal | 51.47 | |
| 47 | 9 | 0 | Adi Mešetović | Bosnia and Herzegovina | 51.47 | |
| 49 | 8 | 8 | Emad Zapen | Jordan | 51.53 | |
| 50 | 7 | 1 | Enkhtamir Batbayar | Mongolia | 51.55 | |
| 50 | 8 | 1 | Jayhan Odlum-Smith | Saint Lucia | 51.55 | |
| 52 | 5 | 5 | Mohamed Mahmoud | Qatar | 51.71 | |
| 53 | 8 | 9 | Reds Rullis | Latvia | 51.72 | |
| 54 | 8 | 2 | James Allison | Cayman Islands | 51.75 | |
| 55 | 9 | 2 | Ian Ho | Hong Kong | 51.77 | |
| 55 | 6 | 3 | Hansel McCaig | Fiji | 51.77 | |
| 57 | 7 | 2 | Egor Covaliov | Moldova | 51.94 | |
| 58 | 1 | 3 | Zaid Al-Sarraj | Saudi Arabia | 52.04 | |
| 58 | 7 | 7 | Musa Zhalayev | Turkmenistan | 52.04 | |
| 60 | 8 | 0 | Alaa Maso | Athlete Refugee Team | 52.05 | |
| 61 | 3 | 0 | Alex Sobers | Barbados | 52.09 | |
| 62 | 5 | 4 | Alexander Shah | Nepal | 52.17 | NR |
| 62 | 6 | 8 | Grisi Koxhaku | Albania | 52.17 | |
| 64 | 7 | 0 | Colins Ebingha | Nigeria | 52.19 | |
| 65 | 5 | 3 | Mohamad Zubaid | Kuwait | 52.21 | |
| 66 | 6 | 5 | Johann Stickland | Samoa | 52.33 | |
| 67 | 6 | 7 | Nixon Hernández | El Salvador | 52.41 | |
| 68 | 2 | 2 | Bernat Lomero | Andorra | 52.53 | |
| 69 | 6 | 0 | Ovesh Purahoo | Mauritius | 52.55 | |
| 70 | 4 | 2 | Raekwon Noel | Guyana | 52.59 | |
| 71 | 6 | 6 | Henrique Mascernhas | Angola | 52.62 | |
| 72 | 6 | 2 | Tendo Mukalazi | Uganda | 52.63 | |
| 73 | 6 | 9 | Ridhwan Mohamed | Kenya | 52.71 | |
| 75 | 7 | 3 | Stefano Mitchell | Antigua and Barbuda | 52.86 | |
| 74 | 7 | 8 | Sidrell Williams | Jamaica | 52.76 | |
| 76 | 7 | 9 | Yazan Al-Bawwab | Palestine | 52.93 | |
| 77 | 5 | 6 | José Alberto Quintanilla | Bolivia | 53.08 | |
| 78 | 5 | 2 | Issa Al-Adawi | Oman | 53.29 | |
| 79 | 5 | 7 | Syed Muhammad Haseeb Tariq | Pakistan | 54.05 | |
| 80 | 5 | 1 | Finau Ohuafi | Tonga | 54.09 | |
| 81 | 6 | 1 | Luka Kukhalashvili | Georgia | 54.41 | |
| 82 | 3 | 7 | Osama Trabulsi | Syria | 54.49 | |
| 83 | 4 | 4 | Josh Tarere | Papua New Guinea | 54.72 | |
| 84 | 3 | 6 | James Hendrix | Guam | 55.03 | |
| 85 | 2 | 8 | Alexien Kouma | Mali | 55.13 | |
| 85 | 5 | 8 | Jeno Heyns | Suriname | 55.13 | |
| 87 | 5 | 0 | Belly-Cresus Ganira | Burundi | 55.29 | |
| 88 | 5 | 9 | Haziq Samil | Brunei | 55.36 | |
| 89 | 4 | 3 | Sangay Tenzin | Bhutan | 55.42 | |
| 90 | 4 | 5 | Phansovannarun Montross | Cambodia | 55.48 | |
| 91 | 2 | 6 | Siraj Al-Sharif | Libya | 56.27 | |
| 92 | 4 | 6 | Cedrick Niyibizi | Rwanda | 56.64 | |
| 93 | 4 | 7 | Michael Joseph | Tanzania | 57.30 | |
| 94 | 3 | 8 | Jefferson Kpanou | Benin | 57.54 | |
| 95 | 2 | 0 | Camil Doua | Mauritania | 57.80 | |
| 96 | 2 | 4 | Asher Banda | Malawi | 1:00.03 | |
| 97 | 4 | 1 | Edgar Iro | Solomon Islands | 1:00.62 | |
| 98 | 3 | 4 | Elhadj Diallo | Guinea | 1:01.68 | |
| 99 | 4 | 0 | Johnathan Silas | Vanuatu | 1:01.86 | NR |
| 100 | 4 | 8 | Phillip Kinono | Marshall Islands | 1:01.92 | |
| 101 | 1 | 5 | Nguichie Ga | Cameroon | 1:02.20 | |
| 102 | 4 | 9 | Christian Nortey | Ghana | 1:02.39 | |
| 103 | 1 | 4 | Magnim Daou | Togo | 1:02.48 | |
| 104 | 3 | 1 | Ousman Jobe | Gambia | 1:03.76 | |
| 105 | 2 | 3 | Aseel Khousrof | Yemen | 1:04.61 | |
| 106 | 3 | 2 | Troy Nisbett | Saint Kitts and Nevis | 1:05.84 | |
| 107 | 3 | 5 | Jolanio Guterres | Timor-Leste | 1:09.84 | |
| 108 | 2 | 1 | Marouane Mamane | Niger | 1:15.54 | |
| | 2 | 5 | Jainny Pinto | São Tomé and Príncipe | Did not start | Did not start |
| | 2 | 7 | Freddy Mayala | Congo | Did not start | Did not start |
| | 9 | 5 | Kregor Zirk | Estonia | Did not start | Did not start |
| | 3 | 3 | Pedro Rogery | Guinea-Bissau | Disqualified | Disqualified |

### Semifinals

The semifinals were started on 14 February at 19:26.
| Rank | Heat | Lane | Name | Nationality | Time | Notes |
| 1 | 2 | 4 | Pan Zhanle | China | 47.73 | Q |
| 2 | 1 | 4 | Alessandro Miressi | Italy | 47.88 | Q |
| 3 | 1 | 3 | Hwang Sun-woo | South Korea | 47.93 | Q |
| 4 | 2 | 5 | Nándor Németh | Hungary | 47.96 | Q |
| 5 | 2 | 6 | Andrej Barna | Serbia | 48.05 | Q |
| 6 | 2 | 2 | Wang Haoyu | China | 48.11 | Q |
| 7 | 2 | 3 | Matt King | United States | 48.17 | Q |
| 8 | 1 | 5 | Matt Richards | Great Britain | 48.22 | Q |
| 9 | 1 | 2 | Manuel Frigo | Italy | 48.25 | |
| 10 | 2 | 7 | Sergio De Celis Montalbán | Spain | 48.39 | NR |
| 11 | 1 | 7 | Diogo Ribeiro | Portugal | 48.44 | |
| 12 | 1 | 6 | Mikel Schreuders | Aruba | 48.46 | |
| 13 | 2 | 8 | Kai Taylor | Australia | 48.50 | |
| 14 | 2 | 1 | Cameron Gray | New Zealand | 48.73 | |
| 15 | 1 | 8 | Kamil Sieradzki | Poland | 48.80 | |
| 16 | 1 | 1 | Björn Seeliger | Sweden | 48.84 | |

### Final

The final was held on 15 February at 19:21.
| Rank | Lane | Name | Nationality | Time |
| | 4 | Pan Zhanle | China | 47.53 |
| | 5 | Alessandro Miressi | Italy | 47.72 |
| | 6 | Nándor Németh | Hungary | 47.78 |
| 4 | 8 | Matt Richards | Great Britain | 47.82 |
| 5 | 3 | Hwang Sun-woo | South Korea | 47.93 |
| 6 | 2 | Andrej Barna | Serbia | 48.02 |
| 7 | 1 | Matt King | United States | 48.06 |
| 7 | 7 | Wang Haoyu | China | 48.06 |