# Swimming at the 2024 World Aquatics Championships – Men's 4 × 100 metre freestyle relay

The Men's 4 × 100 metre freestyle relay competition at the 2024 World Aquatics Championships was held on 11 February 2024.

## Records

Prior to the competition, the existing world and championship records were as follows.
| World record | United States | 3:08.24 | Beijing, China | 11 August 2008 |
| Competition record | United States | 3:09.06 | Gwangju, South Korea | 21 July 2019 |

## Results
### Heats

The heats were started on 11 February at 11:43.
| Rank | Heat | Lane | Nation | Swimmers | Time | Notes |
| 1 | 1 | 4 | United States | Hunter Armstrong (48.37) Jack Aikins (48.42) Luke Hobson (47.70) Carson Foster (47.83) | 3:12.32 | Q |
| 2 | 2 | 4 | Italy | Lorenzo Zazzeri (48.33) Paolo Conte Bonin (48.16) Leonardo Deplano (48.59) Alessandro Miressi (47.88) | 3:12.96 | Q |
| 3 | 2 | 0 | Great Britain | Jacob Whittle (48.82) Tom Dean (49.13) Duncan Scott (48.25) Matt Richards (47.76) | 3:13.96 | Q |
| 4 | 2 | 5 | China | Wang Haoyu (48.08) Ji Xinjie (48.10) Zhang Zhanshuo (49.63) Pan Zhanle (48.26) | 3:14.07 | Q |
| 5 | 2 | 7 | Greece | Apostolos Christou (48.92) Stergios Bilas (48.81) Kristian Gkolomeev (47.86) Andreas Vazaios (48.74) | 3:14.33 | Q |
| 6 | 2 | 6 | Serbia | Velimir Stjepanović (48.87) Andrej Barna (47.63) Uroš Nikolić (49.60) Nikola Aćin (48.32) | 3:14.42 | Q |
| 7 | 1 | 3 | Spain | Luis Domínguez (49.02) Sergio de Celis (48.11) Mario Mollà (48.28) César Castro (49.30) | 3:14.71 | Q |
| 8 | 1 | 6 | Hungary | Szebasztián Szabó (49.32) Dániel Mészáros (48.69) Adam Jaszo (48.43) Nandor Nemeth (48.29) | 3:14.73 | Q |
| 9 | 1 | 7 | Sweden | Robin Hanson (49.27) Björn Seeliger (47.97) Isak Eliasson (49.09) Marcus Holmquist (49.04) | 3:15.37 | |
| 10 | 2 | 2 | Poland | Kamil Sieradzki (48.91) Ksawery Masiuk (48.47) Mateusz Chowaniec (48.76) Kacper Majchrzak (49.57) | 3:15.71 | |
| 11 | 1 | 5 | Canada | Javier Acevedo (48.99) Finlay Knox (47.96) Antoine Sauvé (49.38) Stephen Calkins (49.41) | 3:15.74 | |
| 12 | 2 | 3 | South Korea | Yang Jae-hoon (49.28) Ji Yu-chan (48.90) Lee Yoo-yeon (48.69) Kim Min-suk (50.24) | 3:17.11 | |
| 13 | 1 | 1 | Lithuania | Tomas Navikonis (49.00) Daniil Pancerevas (49.91) Tomas Lukminas (49.10) Rokas Jazdauskas (49.40) | 3:17.41 | |
| 14 | 1 | 2 | Singapore | Mikkel Lee (49.64) Jonathan Tan (48.87) Ardi Azman (49.52) Darren Lim (50.49) | 3:18.52 | |
| 15 | 2 | 1 | Mexico | Andres Dupont (48.81) Héctor Ruvalcaba (50.62) José Ángel Martínez (50.65) Jorge Iga (50.33) | 3:20.41 | |
| 16 | 1 | 0 | Bulgaria | Josif Miladinov (50.43) Kaloyan Bratanov (49.42) Petar Mitsin (51.08) Yordan Yanchev (49.60) | 3:20.53 | NR |
| 17 | 2 | 9 | Slovakia | Tibor Tistan (50.82) Matej Duša (50.35) Richard Nagy (52.29) Frantisek Jablcnik (51.24) | 3:24.70 | NR |
| 18 | 1 | 8 | Thailand | Dulyawat Kaewsriyong (50.88) Navaphat Wongcharoen (52.04) Ratthawit Thammananthachote (52.29) Tonnam Kanteemool (51.38) | 3:26.59 | |
| 19 | 2 | 8 | Vietnam | Trần Hưng Nguyên (51.32) Nguyễn Huy Hoàng (54.04) Ngô Đình Chuyền (51.98) Nguyễn Quang Thuấn (53.03) | 3:30.37 | |

### Final

The final was started at 20:32.
| Rank | Lane | Nation | Swimmers | Time |
| | 6 | China | Pan Zhanle (46.80) WR Ji Xinjie (48.18) Zhang Zhanshuo (48.63) Wang Haoyu (47.47) | 3:11.08 |
| | 5 | Italy | Alessandro Miressi (47.90) Lorenzo Zazzeri (47.99) Paolo Conte Bonin (47.83) Manuel Frigo (48.36) | 3:12.08 |
| | 4 | United States | Matt King (48.02) Shaine Casas (48.47) Luke Hobson (47.68) Carson Foster (48.12) | 3:12.29 |
| 4 | 3 | Great Britain | Matt Richards (48.19) Jacob Whittle (48.36) Tom Dean (48.63) Duncan Scott (47.37) | 3:12.55 |
| 5 | 8 | Hungary | Nandor Nemeth (47.89) Szebasztián Szabó (48.27) Dániel Mészáros (49.06) Adam Jaszo (48.44) | 3:13.66 |
| 6 | 2 | Greece | Apostolos Christou (48.95) Kristian Gkolomeev (48.17) Stergios Bilas (48.38) Andreas Vazaios (48.17) | 3:13.67 |
| 7 | 7 | Serbia | Velimir Stjepanović (49.10) Andrej Barna (47.75) Uroš Nikolić (48.86) Nikola Aćin (48.17) | 3:13.88 |
| 8 | 1 | Spain | Sergio de Celis (49.03) Luis Domínguez (48.16) Carles Coll Martí (49.40) Mario Mollà (48.34) | 3:14.93 |