# Swimming at the 2018 European Aquatics Championships – Women's 4 × 100 metre medley relay

The Women's 4 × 100 metre medley relay competition of the 2018 European Aquatics Championships was held on 9 August 2018.

## Records

Before the competition, the existing world and championship records were as follows.
| | Team | Time | Location | Date |
| World record | United States | 3:51.55 | Budapest | 30 July 2017 |
| European record | Russia | 3:53.38 | Budapest | 30 July 2017 |
| Championship record | Denmark | 3:55.62 | Berlin | 24 August 2014 |
The following new records were set during this competition.
| Date | Event | Nation | Time | Record |
| 9 August | Final | Russia | 3:54.22 | CR |

## Results
### Heats

The heats were started at 10:05.
| Rank | Heat | Lane | Nation | Swimmers | Time | Notes |
| 1 | 1 | 3 | Denmark | Mie Nielsen (59.95) Rikke Møller Pedersen (1:07.70) Emilie Beckmann (58.48) Pernille Blume (52.27) | 3:58.40 | Q |
| 2 | 1 | 6 | Great Britain | Kathleen Dawson (1:00.17) Siobhan-Marie O'Connor (1:06.74) Alys Thomas (58.44) Freya Anderson (54.63) | 3:59.98 | Q |
| 3 | 2 | 7 | Italy | Carlotta Zofkova (1:00.22) Martina Carraro (1:07.92) Ilaria Bianchi (57.79) Giada Galizi (54.59) | 4:00.52 | Q |
| 4 | 1 | 1 | Netherlands | Kira Toussaint (1:00.13) Tes Schouten (1:08.63) Kinge Zandringa (59.51) Femke Heemskerk (53.23) | 4:01.50 | Q |
| 5 | 1 | 8 | France | Mathilde Cini (1:00.79) Fanny Deberghes (1:08.06) Marie Wattel (58.96) Charlotte Bonnet (53.71) | 4:01.52 | Q |
| 6 | 2 | 8 | Russia | Daria Ustinova (1:01.23) Vitalina Simonova (1:08.61) Svetlana Chimrova (57.86) Arina Openysheva (54.44) | 4:02.14 | Q |
| 7 | 1 | 5 | Germany | Laura Riedemann (1:00.65) Jessica Steiger (1:08.71) Franziska Hentke (58.89) Annika Bruhn (54.15) | 4:02.40 | Q |
| 8 | 2 | 5 | Hungary | Katinka Hosszú (1:01.01) Anna Sztankovics (1:08.50) Liliána Szilágyi (59.02) Evelyn Verrasztó (55.39) | 4:03.92 | Q |
| 9 | 1 | 4 | Sweden | Ida Lindborg (1:01.71) Sophie Hansson (1:08.18) Louise Hansson (58.19) Magdalena Kuras (55.86) | 4:03.94 | |
| 10 | 1 | 2 | Switzerland | Nina Kost (1:02.00) Lisa Mamié (1:08.73) Svenja Stoffel (1:00.29) Maria Ugolkova (53.36) | 4:04.38 | |
| 11 | 2 | 4 | Poland | Alicja Tchórz (1:01.53) Weronika Hallmann (1:09.09) Anna Dowgiert (59.21) Katarzyna Wasick (54.66) | 4:04.49 | |
| 12 | 2 | 1 | Spain | Duane Da Rocha (1:01.44) Jessica Vall (1:07.16) Lidón Muñoz (1:00.99) Melani Costa (55.20) | 4:04.79 | |
| 13 | 2 | 2 | Israel | Shahar Menahem (1:03.44) Anastasia Gorbenko (1:10.86) Amit Ivry (58.78) Andrea Murez (54.10) | 4:07.18 | |
| 14 | 1 | 7 | Turkey | Ekaterina Avramova (1:03.02) Viktoriya Zeynep Güneş (1:10.59) Aleyna Özkan (1:01.29) Selen Özbilen (56.09) | 4:10.99 | |
| 15 | 2 | 6 | Austria | Caroline Pilhatsch (1:01.89) Elena Guttmann (1:12.63) Lena Kreundl (1:01.38) Cornelia Pammer (57.98) | 4:13.88 | |
| 16 | 2 | 3 | Slovakia | Karolina Hájková (1:03.37) Nikoleta Trníková (1:13.15) Andrea Podmaníková (1:03.39) Laura Benková (57.73) | 4:17.64 | |
| | 2 | 0 | Finland | Did not start | Did not start | Did not start |

### Final

The final was held at 18:07.
| Rank | Lane | Nation | Swimmers | Time | Notes |
| | 7 | Russia | Anastasia Fesikova (59.56) Yuliya Yefimova (1:03.95) Svetlana Chimrova (57.34) Maria Kameneva (53.37) | 3:54.22 | CR |
| | 4 | Denmark | Mie Nielsen (59.76) Rikke Møller Pedersen (1:07.50) Emilie Beckmann (57.66) Pernille Blume (51.77) | 3:56.69 | |
| | 5 | Great Britain | Georgia Davies (59.44) Siobhan-Marie O'Connor (1:07.22) Alys Thomas (57.56) Freya Anderson (52.69) | 3:56.91 | |
| 4 | 3 | Italy | Carlotta Zofkova (59.86) Arianna Castiglioni (1:06.50) Elena Di Liddo (57.34) Federica Pellegrini (53.30) | 3:57.00 | |
| 5 | 6 | Netherlands | Kira Toussaint (59.81) Tes Schouten (1:08.05) Kinge Zandringa (58.24) Femke Heemskerk (52.84) | 3:58.94 | |
| 6 | 2 | France | Mathilde Cini (1:01.00) Fanny Deberghes (1:07.46) Marie Wattel (58.54) Charlotte Bonnet (52.85) | 3:59.85 | |
| 7 | 1 | Germany | Laura Riedemann (1:00.58) Jessica Steiger (1:08.38) Aliena Schmidtke (58.29) Annika Bruhn (53.85) | 4:01.10 | |
| 8 | 8 | Hungary | Katinka Hosszú (1:00.93) Anna Sztankovics (1:08.78) Liliána Szilágyi (58.71) Evelyn Verrasztó (56.16) | 4:04.58 | |