# Swimming at the 2023 World Aquatics Championships – Men's 4 × 100 metre freestyle relay

The men's 4 × 100 metre freestyle relay competition at the 2023 World Aquatics Championships will be held on 23 July 2023.

## Records

Prior to the competition, the existing world and championship records were as follows.
| World record | United States Michael Phelps (47.51) Garrett Weber-Gale (47.02) Cullen Jones (47.65) Jason Lezak (46.06) | 3:08.24 | Beijing, China | 11 August 2008 |
| Competition record | United States Caeleb Dressel (47.63) Blake Pieroni (47.49) Zach Apple (46.86) Nathan Adrian (47.08) | 3:09.06 | Gwangju, South Korea | 21 July 2019 |

## Results
### Heats

The heats were held at 13:14.
| Rank | Heat | Lane | Nation | Swimmers | Time | Notes |
| 1 | 3 | 4 | United States | Chris Guiliano (48.30) Destin Lasco (47.95) Matt King (47.50) Justin Ress (47.88) | 3:11.63 | Q |
| 2 | 3 | 5 | Australia | Jack Cartwright (48.29) Matthew Temple (48.19) Kai Taylor (47.59) Flynn Southam (47.57) | 3:11.64 | Q |
| 3 | 2 | 4 | Italy | Alessandro Miressi (48.10) Leonardo Deplano (48.42) Lorenzo Zazzeri (47.91) Manuel Frigo (48.10) | 3:12.53 | Q |
| 4 | 2 | 3 | Canada | Ruslan Gaziev (48.38) Javier Acevedo (48.55) Édouard Fullum-Huot (48.96) Joshua Liendo (47.60) | 3:13.49 | Q |
| 5 | 3 | 7 | China | Wang Haoyu (48.37) Chen Juner (48.26) Yang Jintong (49.54) Pan Zhanle (47.37) | 3:13.54 | Q |
| 6 | 2 | 6 | Spain | Sergio de Celis (48.81) Luis Domínguez (48.39) Mario Mollà (48.63) César Castro (47.94) | 3:13.77 | Q |
| 7 | 3 | 6 | Brazil | Marcelo Chierighini (48.87) Guilherme Caribé (47.84) Felipe Ribeiro (48.34) Victor Alcará (48.77) | 3:13.82 | Q |
| 8 | 2 | 2 | Israel | Denis Loktev (49.10) Tomer Frankel (48.01) Ron Polonsky (48.83) Gal Cohen Groumi (48.09) | 3:14.03 | Q, NR |
| 9 | 2 | 0 | Germany | Rafael Miroslaw (49.11) Josha Salchow (47.92) Luca Armbruster (48.82) Peter Varjasi (48.19) | 3:14.04 | |
| 10 | 3 | 2 | Serbia | Velimir Stjepanović (48.76) Andrej Barna (47.68) Nikola Aćin (49.01) Uroš Nikolić (48.91) | 3:14.36 | |
| 11 | 3 | 3 | Hungary | Nándor Németh (48.20) Szebasztián Szabó (48.43) Dániel Mészáros (48.96) Hubert Kós (48.83) | 3:14.42 | |
| 12 | 3 | 8 | France | Hadrien Salvan (48.70) Max Berg (48.62) Guillaume Guth (48.94) Florent Manaudou (48.28) | 3:14.54 | |
| 13 | 3 | 9 | Japan | Katsuhiro Matsumoto (48.54) Masahiro Kawane (49.35) Tomonobu Gomi (48.85) Katsumi Nakamura (48.10) | 3:14.84 | |
| 14 | 2 | 1 | Poland | Kamil Sieradzki (49.06) Kacper Stokowski (49.01) Adrian Jaskiewicz (49.62) Ksawery Masiuk (47.86) | 3:15.55 | |
| 15 | 3 | 0 | Greece | Andreas Vazaios (49.18) Apostolos Christou (49.30) Odyssefs Meladinis (48.99) Kristian Gkolomeev (48.39) | 3:15.86 | |
| 16 | 2 | 7 | Sweden | Björn Seeliger (49.07) Robin Hanson (48.77) Elias Funch Persson (49.47) Isak Eliasson (48.76) | 3:16.07 | |
| 17 | 3 | 1 | South Korea | Lee Ho-joon (49.21) Ji Yu-chan (48.81) Yang Jae-hoon (49.08) Kim Ji-heun (49.05) | 3:16.15 | |
| 18 | 2 | 8 | Singapore | Quah Zheng Wen (49.68) Jonathan Tan (48.62) Mikkel Lee (49.34) Glen Lim Jun Wei (50.25) | 3:17.89 | |
| 19 | 1 | 4 | Venezuela | Alberto Mestre (50.21) Emil Pérez (51.39) Jorge Otaiza (50.82) Alfonso Mestre (52.69) | 3:25.11 | |
| 20 | 1 | 5 | Thailand | Dulyawat Kaewsriyong (51.11) Navaphat Wongcharoen (52.12) Ratthawit Thammananthachote (52.50) Tonnam Kanteemool (51.45) | 3:27.18 | |
| 21 | 2 | 9 | Vietnam | Hoàng Quý Phước (51.32) Luong Jérémie Loïc Nino (50.76) Trần Hưng Nguyên (52.46) Nguyễn Quang Thuấn (53.09) | 3:27.63 | |
| | 2 | 5 | Great Britain | Lewis Burras (48.61) Matt Richards (46.89) Jacob Whittle (47.37) Duncan Scott (47.60) | DSQ | DSQ |
| | 1 | 3 | Mexico | DNS | DNS | DNS |

### Final

The final was held at 21:43.
| Rank | Lane | Nation | Swimmers | Time | Notes |
| | 5 | Australia | Jack Cartwright (47.84) Flynn Southam (47.85) Kai Taylor (47.91) Kyle Chalmers (46.56) | 3:10.16 | |
| | 3 | Italy | Alessandro Miressi (47.54) Manuel Frigo (47.79) Lorenzo Zazzeri (48.13) Thomas Ceccon (47.03) | 3:10.49 | |
| | 4 | United States | Ryan Held (48.16) Jack Alexy (47.56) Chris Guiliano (47.77) Matt King (47.32) | 3:10.81 | |
| 4 | 2 | China | Pan Zhanle (47.67) Chen Juner (47.85) Wang Changhao (48.89) Wang Haoyu (46.97) | 3:11.38 | AS |
| 5 | 6 | Canada | Joshua Liendo (48.17) Ruslan Gaziev (47.30) Finlay Knox (48.70) Javier Acevedo (47.88) | 3:12.05 | |
| 6 | 1 | Brazil | Marcelo Chierighini (48.84) Guilherme Caribé (46.76) Felipe Ribeiro (48.40) Victor Alcará (48.71) | 3:12.71 | |
| 7 | 8 | Israel | Tomer Frankel (48.43) Denis Loktev (48.46) Ron Polonsky (49.07) Gal Cohen Groumi (48.57) | 3:14.53 | |
| 8 | 7 | Spain | Sergio de Celis (48.77) Luis Domínguez (48.47) Mario Mollà (48.86) César Castro (48.54) | 3:14.64 | |