# Swimming at the 2018 European Aquatics Championships – Mixed 4 × 100 metre freestyle relay

The Mixed 4 × 100 metre freestyle relay competition of the 2018 European Aquatics Championships was held on 8 August 2018.

## Records

Prior to the competition, the existing world and championship records were as follows.
| | Team | Time | Location | Date |
| World record | United States | 3:19.60 | Budapest | 29 July 2017 |
| European record | Netherlands | 3:21.81 | Budapest | 29 July 2017 |
| Championship record | Netherlands | 3:23.64 | London | 20 May 2016 |
The following new records were set during this competition.
| Date | Event | Nation | Time | Record |
| 8 August | Final | France | 3:22.07 | CR |

## Results
### Heats

The heats were started at 10:01.
| Rank | Heat | Lane | Nation | Swimmers | Time | Notes |
| 1 | 2 | 4 | Russia | Danila Izotov (48.90) Vladislav Grinev (48.10) Rozaliya Nasretdinova (55.21) Arina Openysheva (54.94) | 3:27.15 | Q |
| 2 | 1 | 3 | Netherlands | Kyle Stolk (49.57) Stan Pijnenburg (48.65) Kira Toussaint (54.60) Ranomi Kromowidjojo (54.37) | 3:27.19 | Q |
| 3 | 2 | 1 | France | Jérémy Stravius (48.94) Maxime Grousset (48.93) Margaux Fabre (54.77) Béryl Gastaldello (54.76) | 3:27.40 | Q |
| 4 | 1 | 5 | Italy | Lorenzo Zazzeri (50.09) Alessandro Miressi (48.24) Giada Galizi (54.70) Erika Ferraioli (54.92) | 3:27.95 | Q |
| 5 | 1 | 4 | Germany | Damian Wierling (49.20) Christoph Fildebrandt (49.37) Reva Foos (54.37) Marie Pietruschka (55.23) | 3:28.17 | Q |
| 6 | 2 | 7 | Israel | David Gamburg (50.35) Ziv Kalontarov (49.05) Anastasia Gorbenko (56.68) Andrea Murez (54.37) | 3:30.45 | Q |
| 7 | 1 | 6 | Hungary | Richárd Bohus (50.12) Maxim Lobanovszkij (49.01) Evelyn Verrasztó (55.06) Liliána Szilágyi (56.61) | 3:30.80 | Q |
| 8 | 1 | 1 | Poland | Kacper Majchrzak (49.30) Jakub Kraska (49.31) Dominika Kossakowska (56.36) Aleksandra Polańska (56.39) | 3:31.36 | Q |
| 9 | 1 | 2 | Sweden | Christoffer Carlsen (49.21) Isak Eliasson (49.91) Ida Lindborg (55.97) Magdalena Kuras (56.31) | 3:31.40 | |
| 10 | 2 | 5 | Belgium | Jasper Aerents (49.89) Emmanuel Vanluchene (49.34) Juliette Dumont (56.64) Lotte Goris (55.89) | 3:31.76 | |
| 11 | 2 | 6 | Austria | Alexander Trampitsch (49.73) Bernhard Reitshammer (49.19) Lena Kreundl (56.02) Cornelia Pammer (56.99) | 3:31.93 | |
| 12 | 2 | 3 | Norway | Markus Lie (49.95) Niksa Stojkovski (49.80) Susann Bjørnsen (57.05) Emilie Løvberg (57.78) | 3:34.58 | |
| 13 | 2 | 8 | Turkey | Yalım Acımış (50.99) Kemal Arda Gürdal (50.11) Selen Özbilen (56.40) Ekaterina Avramova (58.03) | 3:35.53 | |
| 14 | 2 | 2 | Estonia | Marko-Matteus Langel (51.85) Nikita Tsernosev (50.54) Kertu Ly Alnek (56.59) Aleksa Gold (57.29) | 3:36.27 | |
| 15 | 1 | 7 | Latvia | Ģirts Feldbergs (51.74) Daniils Bobrovs (52.88) Ieva Maļuka (57.17) Gabriela Ņikitina (56.99) | 3:38.78 | |

### Final

The final was started at 17:45.
| Rank | Lane | Nation | Swimmers | Time | Notes |
| | 3 | France | Jérémy Stravius (48.81) Mehdy Metella (47.45) Marie Wattel (53.47) Charlotte Bonnet (52.34) | 3:22.07 | CR |
| | 5 | Netherlands | Nyls Korstanje (49.40) Stan Pijnenburg (48.74) Femke Heemskerk (52.62) Ranomi Kromowidjojo (53.21) | 3:23.97 | |
| | 4 | Russia | Kliment Kolesnikov (48.45) Vladislav Grinev (47.69) Maria Kameneva (53.90) Arina Openysheva (54.46) | 3:24.50 | NR |
| 4 | 6 | Italy | Luca Dotto (49.23) Alessandro Miressi (47.38) Giada Galizi (54.69) Federica Pellegrini (53.64) | 3:24.94 | |
| 5 | 2 | Germany | Damian Wierling (49.45) Christoph Fildebrandt (49.12) Reva Foos (54.50) Annika Bruhn (53.52) | 3:26.59 | |
| 6 | 1 | Hungary | Nándor Németh (48.82) Dominik Kozma (48.27) Zsuzsanna Jakabos (56.53) Evelyn Verrasztó (55.68) | 3:29.30 | |
| 7 | 8 | Poland | Jan Świtkowski (50.24) Kacper Majchrzak (49.22) Alicja Tchórz (56.13) Katarzyna Wasick (54.03) | 3:29.62 | NR |
| 8 | 7 | Israel | David Gamburg (50.34) Ziv Kalontarov (49.34) Andrea Murez (54.87) Anastasia Gorbenko (55.18) | 3:29.73 | |