# Swimming at the 2020 European Aquatics Championships – Women's 4 × 100 metre medley relay

The Women's 4 × 100 metre medley relay competition of the 2020 European Aquatics Championships was held on 23 May 2021.

## Records

Before the competition, the existing world, European and championship records were as follows.
| | Team | Time | Location | Date |
| World record | United States | 3:50.40 | Gwangju | 28 July 2019 |
| European record | Russia | 3:53.38 | Budapest | 30 July 2017 |
| Championship record | Russia | 3:54.22 | Glasgow | 9 August 2018 |
The following new records were set during this competition.
| Date | Event | Nation | Time | Record |
| 23 May | Final | Great Britain | 3:54.01 | CR |

## Results
### Heats

The heats were started at 11:08.
| Rank | Heat | Lane | Nation | Swimmers | Time | Notes |
| 1 | 1 | 3 | Netherlands | Kira Toussaint (59.51) Tes Schouten (1:07.84) Maaike de Waard (58.25) Femke Heemskerk (53.07) | 3:58.67 | Q |
| 2 | 2 | 6 | Russia | Anastasia Fesikova (1:00.25) Evgeniia Chikunova (1:06.84) Svetlana Chimrova (56.98) Arina Surkova (54.71) | 3:58.78 | Q |
| 3 | 2 | 4 | Sweden | Hanna Rosvall (1:02.70) Sophie Hansson (1:06.21) Louise Hansson (56.71) Michelle Coleman (53.74) | 3:59.36 | Q |
| 4 | 2 | 5 | Italy | Silvia Scalia (1:01.65) Martina Carraro (1:06.30) Elena Di Liddo (58.05) Silvia Di Pietro (54.26) | 4:00.26 | Q |
| 5 | 3 | 5 | Great Britain | Cassie Wild (1:00.47) Sarah Vasey (1:06.98) Harriet Jones (58.47) Freya Anderson (54.47) | 4:00.39 | Q |
| 6 | 1 | 4 | Finland | Mimosa Jallow (1:00.41) Ida Hulkko (1:06.38) Laura Lahtinen (1:00.30) Fanny Teijonsalo (54.57) | 4:01.66 | Q |
| 7 | 3 | 7 | Belarus | Anastasiya Shkurdai (1:00.14) Alina Zmushka (1:07.15) Anastasiya Kuliashova (58.67) Nastassia Karakouskaya (55.96) | 4:01.92 | Q, NR |
| 8 | 3 | 0 | Denmark | Karoline Sørensen (1:02.29) Clara Rybak-Andersen (1:08.24) Emilie Beckmann (57.52) Signe Bro (53.92) | 4:01.97 | Q |
| 9 | 3 | 2 | Spain | África Zamorano (1:01.48) Jessica Vall (1:07.12) Aina Hierro (59.79) Lidón Muñoz (53.99) | 4:02.38 | NR |
| 10 | 3 | 8 | France | Mathilde Cini (1:01.27) Justine Delmas (1:08.22) Marie Wattel (58.20) Assia Touati (54.74) | 4:02.43 | |
| 11 | 2 | 1 | Ireland | Danielle Hill (1:01.07) Mona McSharry (1:06.44) Ellen Walshe (59.72) Victoria Catterson (55.70) | 4:02.93 | NR |
| 12 | 3 | 9 | Switzerland | Nina Kost (1:00.85) Lisa Mamié (1:08.14) Maria Ugolkova (58.76) Noémi Girardet (55.56) | 4:03.31 | |
| 13 | 3 | 6 | Turkey | Ekaterina Avramova (1:01.25) Viktoriya Zeynep Güneş (1:07.38) Nida Eliz Üstündağ (1:00.62) Selen Özbilen (54.76) | 4:04.01 | |
| 14 | 2 | 2 | Hungary | Réka Nyirádi (1:02.80) Petra Halmai (1:07.56) Dalma Sebestyén (59.19) Fanni Gyurinovics (54.59) | 4:04.14 | |
| 15 | 3 | 1 | Czech Republic | Simona Kubová (1:01.00) Kristýna Horská (1:09.31) Barbora Janíčková (1:00.37) Barbora Seemanová (53.64) | 4:04.32 | |
| 16 | 3 | 3 | Slovakia | Emma Marušáková (1:04.20) Andrea Podmaníková (1:08.37) Tamara Potocká (1:00.04) Teresa Ivanová (55.77) | 4:08.38 | NR |
| 17 | 2 | 8 | Belgium | Jade Smits (1:02.78) Josephine Dumont (1:09.50) Kimberly Buys (59.01) Lana Ravelingien (57.21) | 4:08.50 | |
| 18 | 3 | 4 | Slovenia | Janja Šegel (1:03.44) Tjaša Vozel (1:09.80) Katja Fain (1:01.61) Neža Klančar (54.93) | 4:09.78 | NR |
| 19 | 2 | 3 | Latvia | Arina Baikova (1:03.11) Arina Sisojeva (1:10.07) Ieva Maļuka (1:02.23) Gabriela Ņikitina (56.16) | 4:11.57 | NR |
| 20 | 1 | 5 | Austria | Caroline Pilhatsch (1:03.05) Cornelia Pammer (1:12.56) Lena Kreundl (1:00.48) Lena Opatril (56.83) | 4:12.92 | |
| | 2 | 7 | Greece | Ioanna Sacha (1:02.73) Maria Drasidou Anna Ntountounaki Theodora Drakou | Disqualified | Disqualified |
| | 2 | 0 | Poland | Paulina Peda (1:00.66) Dominika Sztandera (1:08.17) Klaudia Naziębło (59.61) Katarzyna Wasick | Disqualified | Disqualified |

### Final

The final was held at 19:21.
| Rank | Lane | Nation | Swimmers | Time | Notes |
| | 2 | Great Britain | Kathleen Dawson (58.08 ER) Molly Renshaw (1:05.72) Laura Stephens (57.55) Anna Hopkin (52.66) | 3:54.01 | CR, NR |
| | 5 | Russia | Maria Kameneva (59.47) Yuliya Yefimova (1:05.77) Svetlana Chimrova (56.78) Arina Surkova (54.23) | 3:56.25 | |
| | 6 | Italy | Margherita Panziera (59.71) Arianna Castiglioni (1:05.66) Elena Di Liddo (57.27) Federica Pellegrini (53.66) | 3:56.30 | NR |
| 4 | 3 | Sweden | Michelle Coleman (1:00.00) Sophie Hansson (1:05.45) Louise Hansson (56.79) Sara Junevik (54.30) | 3:56.54 | |
| 5 | 4 | Netherlands | Kira Toussaint (59.76) Tes Schouten (1:07.93) Maaike de Waard (57.53) Femke Heemskerk (52.19) | 3:57.41 | |
| 6 | 1 | Belarus | Anastasiya Shkurdai (59.53) Alina Zmushka (1:06.64) Anastasiya Kuliashova (58.30) Nastassia Karakouskaya (55.90) | 4:00.37 | NR |
| 7 | 7 | Finland | Mimosa Jallow (1:00.47) Ida Hulkko (1:06.67) Laura Lahtinen (1:00.60) Fanny Teijonsalo (54.22) | 4:01.96 | |
| | 8 | Denmark | Karoline Sørensen (1:02.04) Clara Rybak-Andersen (1:07.92) Emilie Beckmann Signe Bro | Disqualified | Disqualified |