2021 FINA World Swimming Championships (25 m) – Women's 4 × 200 metre freestyle relay
# 2021 FINA World Swimming Championships (25 m) – Women's 4 × 200 metre freestyle relay

The Women's 4 × 200 metre freestyle relay competition of the 2021 FINA World Swimming Championships (25 m) was held on 20 December 2021.

## Records

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

| World record | Netherlands (NED) | 7:32.85 | Doha, Qatar | 3 December 2014 |
| - | - | - | - | - |
| Competition record | Netherlands (NED) | 7:32.85 | Doha, Qatar | 3 December 2014 |

## Results

### Heats

The heats were started at 11:38.

| Rank | Heat | Lane | Nation | Swimmers | Time | Notes |
| - | - | - | - | - | - | - |
| 1 | 1 | 5 | Russian Swimming Federation | Ekaterina Nikonova (1:56.17) Anna Egorova (1:57.46) Daria S. Ustinova (1:56.06) Valeriya Salamatina (1:54.80) | 7:44.49 | Q |
| 2 | 1 | 4 | United States | Torri Huske (1:56.41) Katharine Berkoff (1:55.89) Emma Weyant (1:57.28) Paige Madden (1:56.00) | 7:45.58 | Q |
| 3 | 2 | 4 | China | Li Bingjie (1:55.75) Cheng Yujie (1:56.29) Zhu Menghui (1:58.70) Liu Yaxin (1:56.76) | 7:47.50 | Q |
| 4 | 1 | 3 | Hungary | Fanni Gyurinovics (1:57.31) Ajna Késely (1:56.82) Nikolett Pádár (1:56.70) Boglárka Kapás (1:57.45) | 7:48.28 | Q |
| 5 | 2 | 3 | Germany | Isabel Marie Gose (1:56.39) Annika Bruhn (1:56.98) Leonie Kullmann (1:58.81) Marie Pietruschka (1:58.69) | 7:50.87 | Q |
| 6 | 2 | 5 | Canada | Tessa Cieplucha (1:57.33) Rebecca Smith (1:56.25) Summer McIntosh (1:59.58) Sydney Pickrem (2:00.66) | 7:53.82 | Q |
| 7 | 2 | 6 | Brazil | Nathalia Almeida (1:57.64) Viviane Jungblut (1:59.05) Giovanna Diamante (1:58.99) Gabrielle Roncatto (1:58.72) | 7:54.40 | Q |
| 8 | 2 | 2 | Hong Kong | Katii Tang (1:58.31) Sze Hang Yu (1:58.41) Chloe Cheng (1:59.20) Stephanie Au (1:59.56) | 7:55.48 | Q, NR |
| 9 | 1 | 6 | Turkey | Deniz Ertan (1:58.90) Merve Tuncel (1:59.51) Beril Böcekler (2:00.62) Ekaterina Avramova (2:00.46) | 7:59.49 | |
| | 1 | 2 | Singapore | | DNS | |
| | 2 | 7 | Slovakia | | DNS | |

### Final

The final was held at 19:55.

| Rank | Lane | Nation | Swimmers | Time | Notes |
| - | - | - | - | - | - |
| | 7 | Canada | Summer McIntosh (1:54.30) Kayla Sanchez (1:52.97) Katerine Savard (1:54.01) Rebecca Smith (1:51.68) | 7:32.96 | AM |
| | 5 | United States | Torri Huske (1:54.72) Abbey Weitzeil (1:54.31) Melanie Margalis (1:54.83) Paige Madden (1:52.67) | 7:36.53 | |
| | 3 | China | Li Bingjie (1:53.42) Cheng Yujie (1:54.91) Zhu Menghui (1:55.73) Liu Yaxin (1:55.86) | 7:39.92 | |
| 4 | 4 | Russian Swimming Federation | Ekaterina Nikonova (1:55.48) Valeriya Salamatina (1:55.33) Anna Egorova (1:55.34) Daria S. Ustinova (1:56.31) | 7:42.46 | |
| 5 | 6 | Hungary | Zsuzsanna Jakabos (1:55.36) Fanni Gyurinovics (1:56.89) Nikolett Pádár (1:57.56) Ajna Késely (1:57.23) | 7:47.04 | |
| 6 | 2 | Germany | Isabel Marie Gose (1:55.00) Annika Bruhn (1:57.48) Leonie Kullmann (1:56.89) Marie Pietruschka (1:57.76) | 7:47.13 | |
| 7 | 1 | Brazil | Nathalia Almeida (1:57.49) Viviane Jungblut (1:59.49) Giovanna Diamante (1:56.53) Gabrielle Roncatto (1:58.36) | 7:51.87 | |
| 8 | 8 | Hong Kong | Katii Tang (1:59.92) Stephanie Au (2:01.76) Chloe Cheng (1:58.80) Chan Kin Lok (2:03.19) | 8:03.67 | |
