# 2018 FINA World Swimming Championships (25 m) – Women's 4 × 50 metre freestyle relay

The women's 4 × 50 metre freestyle relay competition of the 2018 FINA World Swimming Championships (25 m) was held on 16 December 2018.

## Records

Prior to the competition, the existing world and championship records were as follows.
| | Nation | Time | Location | Date |
| World record | Netherlands | 1:33.91 | Copenhagen, Denmark | 15 December 2017 |
| Championship record | Netherlands | 1:34.24 | Doha, Qatar | 7 December 2014 |

## Results
### Heats

The heats were started at 9:30.
| Rank | Heat | Lane | Nation | Swimmers | Time | Notes |
| 1 | 2 | 4 | Netherlands | Femke Heemskerk (23.93) Kim Busch (24.21) Valerie van Roon (24.20) Maaike de Waard (23.99) | 1:36.33 | Q |
| 2 | 1 | 1 | United States | Lia Neal (24.45) Olivia Smoliga (23.99) Veronica Burchill (24.44) Erika Brown (23.77) | 1:36.65 | Q |
| 3 | 1 | 5 | Australia | Holly Barratt (23.97) Ariarne Titmus (24.71) Minna Atherton (24.61) Carla Buchanan (24.58) | 1:37.87 | Q |
| 4 | 1 | 4 | Russia | Rozaliya Nasretdinova (24.84) Arina Surkova (24.18) Daria Kartashova (24.43) Veronika Andrusenko (24.81) | 1:38.26 | Q |
| 5 | 2 | 7 | Japan | Aya Sato (24.70) Tomomi Aoki (24.75) Emi Moronuki (24.89) Rika Omoto (24.13) | 1:38.47 | Q |
| 6 | 2 | 5 | China | Liu Xiang (24.64) Wu Yue (24.21) Liu Xiaohan (24.72) Wang Jingzhuo (25.16) | 1:38.73 | Q |
| 7 | 2 | 6 | Czech Republic | Simona Kubová (25.23) Anika Apostalon (24.28) Barbora Seemanová (24.18) Barbora Závadová (25.35) | 1:39.04 | Q |
| 8 | 1 | 6 | Germany | Jessica Steiger (24.84) Marie Pietruschka (24.86) Annika Bruhn (24.84) Reva Foos (24.89) | 1:39.43 | Q |
| 9 | 2 | 3 | Hong Kong | Kan Cheuk Tung Natalie (25.28) Sze Hang Yu (24.87) Stephanie Au (24.77) Chan Kin Lok (25.34) | 1:40.26 | |
| 10 | 1 | 7 | New Zealand | Paige Flynn (25.28) Rebecca Moynihan (24.84) Emma Godwin (24.99) Vanessa Ouwehand (26.17) | 1:41.28 | |
| 11 | 2 | 2 | Slovakia | Barbora Mikuskova (25.76) Laura Benková (25.87) Tamara Potocká (25.20) Karolina Hájková (25.27) | 1:42.10 | |
| 12 | 1 | 3 | Turkey | Selen Özbilen (25.38) Aleyna Özkan (26.43) Roza Erdemli (26.28) Ekaterina Avramova (25.00) | 1:43.09 | |
| 13 | 1 | 2 | Chinese Taipei | Huang Mei-chien (25.77) Chen Szu-an (26.56) Wang Wan-chen (26.48) Lin Pei-wun (26.45) | 1:45.26 | |
| | 2 | 1 | Brazil | | DNS | |

### Final

The final was held at 18:00.
| Rank | Lane | Nation | Swimmers | Time | Notes |
| | 5 | United States | Madison Kennedy (24.05) Mallory Comerford (23.28) Kelsi Dahlia (23.37) Erika Brown (23.33) | 1:34.03 | CR |
| | 4 | Netherlands | Ranomi Kromowidjojo (23.60) Femke Heemskerk (23.32) Kim Busch (23.84) Valerie van Roon (23.79) | 1:34.55 | |
| | 3 | Australia | Holly Barratt (24.04) Emily Seebohm (24.10) Minna Atherton (24.02) Carla Buchanan (24.18) | 1:36.34 | |
| 4 | 6 | Russia | Maria Kameneva (24.37) Arina Surkova (24.06) Daria Kartashova (24.53) Rozaliya Nasretdinova (24.13) | 1:37.09 | |
| 5 | 2 | Japan | Aya Sato (24.46) Runa Imai (24.27) Rika Omoto (24.07) Tomomi Aoki (24.55) | 1:37.35 | |
| 6 | 7 | China | Liu Xiang (24.59) Wu Yue (23.97) Yang Junxuan (24.32) Liu Xiaohan (24.70) | 1:37.58 | |
| 7 | 1 | Czech Republic | Simona Kubová (25.06) Anika Apostalon (23.91) Barbora Seemanová (23.90) Barbora Závadová (25.37) | 1:38.24 | |
| 8 | 8 | Germany | Jessica Steiger (24.63) Marie Pietruschka (24.73) Annika Bruhn (24.55) Reva Foos (24.79) | 1:38.70 | |