2018 FINA World Swimming Championships (25 m) – Women's 4 × 200 metre freestyle relay
# 2018 FINA World Swimming Championships (25 m) – Women's 4 × 200 metre freestyle relay

The Women's 4 × 200 metre freestyle relay competition of the 2018 FINA World Swimming Championships (25 m) was held on 15 December 2018.

## Records

Prior to the competition, the existing world and championship records were as follows.

| | Nation | Time | Location | Date |
| - | - | - | - | - |
| World record Championship record | Netherlands | 7:32.85 | Doha | 3 December 2014 |

## Results

### Heats

The heats were started on 15 December at 11:51.

| Rank | Heat | Lane | Nation | Swimmers | Time | Notes |
| - | - | - | - | - | - | - |
| 1 | 2 | 3 | Australia | Carla Buchanan (1:56.37) Minna Atherton (1:55.08) Abbey Harkin (1:55.74) Ariarne Titmus (1:53.53) | 7:40.72 | Q |
| 2 | 2 | 5 | Russia | Anastasia Guzhenkova (1:55.08) Irina Krivonogova (1:56.76) Daria Mullakaeva (1:54.39) Valeriya Salamatina (1:55.01) | 7:41.24 | Q |
| 3 | 1 | 4 | United States | Lia Neal (1:56.67) Veronica Burchill (1:57.02) Erika Brown (1:55.32) Leah Smith (1:55.63) | 7:44.64 | Q |
| 4 | 1 | 3 | Italy | Margherita Panziera (1:56.78) Erica Musso (1:56.13) Federica Pellegrini (1:54.09) Simona Quadarella (1:57.82) | 7:44.82 | Q |
| 5 | 2 | 4 | China | Ai Yanhan (1:57.90) Zhang Yuhan (1:54.14) Liu Xiaohan (1:55.46) Li Bingjie (1:57.72) | 7:45.22 | Q |
| 6 | 1 | 5 | Japan | Tomomi Aoki (1:56.88) Chihiro Igarashi (1:55.93) Mayuko Goto (1:57.39) Rika Omoto (1:56.43) | 7:46.63 | Q |
| 7 | 1 | 2 | Germany | Annika Bruhn (1:55.82) Reva Foos (1:56.12) Marie Pietruschka (1:56.48) Sarah Köhler (1:58.91) | 7:47.33 | Q |
| 8 | 2 | 2 | Austria | Marlene Kahler (1:58.02) Lena Kreundl (1:57.28) Cornelia Pammer (1:59.49) Claudia Hufnagl (2:00.29) | 7:55.08 | Q |
| 9 | 2 | 6 | Hong Kong | Sze Hang Yu (1:59.16) Kan Cheuk Tung Natalie (2:02.56) Chan Kin Lok (2:00.64) Ho Nam Wai (1:58.88) | 8:01.24 | Q |
| 10 | 2 | 7 | New Zealand | Hayley McIntosh (2:02.65) Paige Flynn (2:00.87) Emma Godwin (1:59.39) Caitlin Deans (1:58.35) | 8:01.26 | |
| 11 | 1 | 6 | Slovakia | Laura Benková (1:59.74) Tamara Potocká (2:02.60) Sára Niepelová (2:03.79) Sabína Kupčová (2:04.72) | 8:10.85 | |

### Final

The final was held on 15 December at 20:50.

| Rank | Lane | Nation | Swimmers | Time | Notes |
| - | - | - | - | - | - |
| | 2 | China | Li Bingjie (1:54.56) Yang Junxuan (1:53.06) Zhang Yuhan (1:53.94) Wang Jianjiahe (1:52.52) | 7:34.08 | AS |
| | 3 | United States | Leah Smith (1:55.85) Mallory Comerford (1:53.00) Melanie Margalis (1:53.59) Erika Brown (1:52.86) | 7:35.30 | NR |
| | 4 | Australia | Ariarne Titmus (1:52.22) Minna Atherton (1:54.73) Carla Buchanan (1:54.82) Abbey Harkin (1:54.63) | 7:36.40 | OC |
| 4 | 5 | Russia | Anna Egorova (1:54.18) Daria Mullakaeva (1:55.22) Anastasia Guzhenkova (1:53.94) Veronika Andrusenko (1:53.30) | 7:36.64 | NR |
| 5 | 7 | Japan | Tomomi Aoki (1:55.04) Chihiro Igarashi (1:54.89) Mayuko Goto (1:56.76) Rika Omoto (1:56.28) | 7:42.97 | |
| 6 | 6 | Italy | Margherita Panziera (1:56.71) Erica Musso (1:56.65) Federica Pellegrini (1:52.66) Simona Quadarella (1:57.16) | 7:43.18 | |
| 7 | 1 | Germany | Annika Bruhn (1:56.30) Marie Pietruschka (1:55.99) Laura Riedemann (1:57.03) Reva Foos (1:57.04) | 7:46.36 | |
| 8 | 8 | Austria | Marlene Kahler (1:58.80) Lena Kreundl (1:57.20) Cornelia Pammer (1:59.01) Claudia Hufnagl (2:00.92) | 7:55.93 | |
