# Swimming at the 2022 World Aquatics Championships – 4 × 100 metre mixed freestyle relay

The 4 × 100 metre mixed freestyle relay competition at the 2022 World Aquatics Championships was held on 24 June 2022.

## Records

Prior to the competition, the existing world and championship records were as follows.
| World record | United States | 3:19.40 | Gwangju, South Korea | 27 July 2019 |
| Competition record | United States | 3:19.40 | Gwangju, South Korea | 27 July 2019 |
The following new records were set during this competition.
| Date | Event | Nationality | Time | Record |
| 24 June | Final | Australia | 3:19.38 | WR |

## Results
### Heats

The heats were started at 09:53.
| Rank | Heat | Lane | Nation | Swimmers | Time | Notes |
| 1 | 2 | 0 | United States | Ryan Held (47.85) Drew Kibler (48.26) Erika Brown (53.73) Kate Douglass (54.64) | 3:24.48 | Q |
| 2 | 2 | 9 | Canada | Ruslan Gaziev (49.16) Javier Acevedo (48.34) Taylor Ruck (53.92) Maggie Mac Neil (53.88) | 3:25.30 | Q |
| 3 | 3 | 0 | Australia | Zac Incerti (49.28) William Yang (48.39) Meg Harris (53.97) Leah Neale (53.91) | 3:25.55 | Q |
| 4 | 2 | 4 | Netherlands | Stan Pijnenburg (48.79) Jesse Puts (48.54) Tessa Giele (55.47) Marrit Steenbergen (53.06) | 3:25.86 | Q |
| 5 | 3 | 5 | Italy | Leonardo Deplano (48.92) Alessandro Miressi (48.16) Silvia Di Pietro (54.62) Chiara Tarantino (54.30) | 3:26.00 | Q |
| 6 | 3 | 4 | Great Britain | Jacob Whittle (49.04) Matt Richards (48.57) Freya Anderson (54.03) Lucy Hope (54.46) | 3:26.10 | Q |
| 7 | 3 | 3 | Brazil | Vinicius Assunção (48.95) Gabriel Santos (48.70) Stephanie Balduccini (54.29) Giovanna Diamante (54.37) | 3:26.31 | Q |
| 8 | 3 | 1 | China | Hong Jinquan (49.26) Wang Changhao (49.20) Lao Lihui (54.40) Ai Yanhan (54.34) | 3:27.20 | Q |
| 9 | 1 | 1 | New Zealand | Lewis Clareburt (49.55) Carter Swift (48.39) Chelsey Edwards (55.39) Laura Littlejohn (54.58) | 3:27.91 | NR |
| 10 | 2 | 5 | Sweden | Robin Hanson (49.31) Isak Eliasson (48.78) Sofia Åstedt (55.71) Sara Junevik (55.23) | 3:29.03 | |
| 11 | 3 | 8 | South Korea | Hwang Sun-woo (49.18) Lee Yoo-yeon (49.64) Jeong So-eun (55.42) Hur Yeon-kyung (55.11) | 3:29.35 | NR |
| 12 | 1 | 2 | Israel | Tomer Frankel (49.45) Ron Polonsky (48.92) Lea Polonsky (56.59) Daria Golovaty (55.28) | 3:30.24 | |
| 13 | 1 | 6 | Singapore | Jonathan Tan (49.72) Ardi Mohamed Azman (50.46) Quah Jing Wen (56.21) Amanda Lim (56.74) | 3:33.13 | |
| 14 | 2 | 3 | Greece | Stergios Bilas (49.80) Odysseus Meladinis (49.30) Maria Drasidou (58.36) Anna Ntountounaki (56.95) | 3:34.41 | |
| 15 | 1 | 5 | Chinese Taipei | Wang Kuan-hung (50.49) Wang Hsing-hao (50.08) Hsu An (57.08) Huang Mei-chien (57.03) | 3:34.68 | NR |
| 16 | 3 | 9 | Hong Kong | Ian Ho (50.12) Nicholas Lim (51.30) Camille Cheng (56.67) Chloe Cheng (57.17) | 3:35.26 | |
| 17 | 1 | 7 | Latvia | Ģirts Feldbergs (51.95) Daniils Bobrovs (53.72) Ieva Maļuka (55.78) Gabriela Ņikitina (56.78) | 3:38.23 | |
| 18 | 1 | 8 | Thailand | Dulyawat Kaewsriyong (51.71) Navaphat Wongcharoen (51.84) Jinjutha Pholjamjumrus (58.05) Jenjira Srisaard (1:01.73) | 3:43.33 | |
| 18 | 3 | 2 | Morocco | Samy Boutouil (50.42) Souhail Hamouchane (52.76) Lina Khiyara (1:00.53) Imane El Barodi (59.62) | 3:43.33 | |
| 20 | 1 | 4 | Vietnam | Nguyễn Quang Thuấn (52.06) Nguyễn Hữu Kim Sơn (52.12) Võ Thị Mỹ Tiên (1:00.62) Lê Thị Thảo My (1:01.08) | 3:45.88 | |
| 21 | 1 | 3 | Seychelles | Mathieu Bachmann (53.54) Therese Soukup (1:02.27) Simon Bachmann (53.91) Khema Elizabeth (1:03.53) | 3:53.25 | |
| 22 | 2 | 8 | Mongolia | Batbayaryn Enkhkhüslen (59.59) Batbayaryn Enkhtamir (52.94) Enkh-Amgalangiin Ariuntamir (1:04.74) Zandanbal Gunsennorov (56.69) | 3:53.96 | |
| 23 | 2 | 2 | Uganda | Adnan Kabuye (56.00) Kirabo Namutebi (1:03.73) Tendo Mukalazi (53.16) Avice Meya (1:03.15) | 3:56.04 | |
| 24 | 1 | 0 | Guam | Israel Poppe (56.29) Mia Lee (1:03.46) Keana Santos (1:09.57) Benjamin Ko (56.89) | 4:06.21 | |
| 25 | 1 | 9 | Northern Mariana Islands | Taiyo Akimaru (57.63) Maria Batallones (1:06.75) Jinie Thompson (1:10.06) Juhn Tenorio (58.51) | 4:12.95 | |
| 26 | 2 | 1 | Maldives | Mohamed Aan Hussain (56.96) Aishath Sausan (1:10.71) Hamna Ahmed (1:13.88) Mubal Azzam Ibrahim (56.89) | 4:18.44 | |
| | 3 | 7 | Tanzania | Dennis Mhini (59.10) Eunike Fugo (1:15.13 Kayla Temba (1:23.02) Collins Saliboko | Disqulified | Disqulified |
| | 2 | 6 | Bahamas | | Did not start | Did not start |
| | 2 | 7 | France | | Did not start | Did not start |
| | 3 | 6 | Angola | | Did not start | Did not start |

### Final

The final was held at 19:49.
| Rank | Lane | Nation | Swimmers | Time | Notes |
| | 3 | Australia | Jack Cartwright (48.12) Kyle Chalmers (46.98) Madison Wilson (52.25) Mollie O'Callaghan (52.03) | 3:19.38 | WR |
| | 5 | Canada | Joshua Liendo (48.02) Javier Acevedo (47.96) Kayla Sanchez (52.52) Penny Oleksiak (52.11) | 3:20.61 | NR |
| | 4 | United States | Ryan Held (47.93) Brooks Curry (47.72) Torri Huske (52.70) Claire Curzan (52.84) | 3:21.09 | |
| 4 | 7 | Great Britain | Tom Dean (48.25) Lewis Burras (47.86) Anna Hopkin (53.27) Freya Anderson (53.06) | 3:22.44 | |
| 5 | 6 | Netherlands | Stan Pijnenburg (48.80) Jesse Puts (48.29) Tessa Giele (54.58) Marrit Steenbergen (52.57) | 3:24.24 | |
| 6 | 1 | Brazil | Gabriel Santos (48.73) Vinicius Assunção (48.03) Giovanna Diamante (53.98) Stephanie Balduccini (54.04) | 3:24.78 | SA |
| 7 | 2 | Italy | Lorenzo Zazzeri (48.69) Alessandro Miressi (47.50) Silvia Di Pietro (54.19) Chiara Tarantino (55.45) | 3:25.83 | |
| 8 | 8 | China | Hong Jinquan (48.88) Wang Changhao (48.86) Lao Lihui (54.60) Ai Yanhan (54.58) | 3:26.92 | |