# Swimming at the 2020 European Aquatics Championships – Mixed 4 × 100 metre freestyle relay

The Mixed 4 × 100 metre freestyle relay competition of the 2020 European Aquatics Championships was held on 22 May 2021.

## Records

Before the competition, the existing European and championship records were as follows.
| | Team | Time | Location | Date |
| World record | United States | 3:19.40 | Gwangju | 29 July 2019 |
| European record | Netherlands | 3:21.81 | Budapest | 29 July 2017 |
| Championship record | France | 3:22.07 | Glasgow | 8 August 2018 |
The following new records were set during this competition.
| Date | Event | Nation | Time | Record |
| 22 May | Final | Great Britain | 3:22.07 | =CR |

## Results
### Heats

The heats were started at 11:02.
| Rank | Heat | Lane | Nation | Swimmers | Time | Notes |
| 1 | 2 | 2 | Italy | Manuel Frigo (48.90) Thomas Ceccon (47.84) Chiara Tarantino (54.73) Silvia Di Pietro (54.90) | 3:26.37 | Q |
| 2 | 1 | 2 | Poland | Jakub Kraska (48.77) Kacper Majchrzak (49.11) Kornelia Fiedkiewicz (54.86) Alicja Tchórz (54.21) | 3:26.95 | Q, NR |
| 3 | 2 | 7 | Netherlands | Stan Pijnenburg (48.75) Luc Kroon (49.35) Marrit Steenbergen (54.04) Kim Busch (55.20) | 3:27.34 | Q |
| 4 | 2 | 6 | Great Britain | Matthew Richards (48.97) Jacob Whittle (48.47) Evelyn Davis (55.42) Lucy Hope (54.51) | 3:27.37 | Q, NR |
| 5 | 1 | 8 | Hungary | Nándor Németh (48.75) Richárd Bohus (49.32) Petra Senánszky (55.29) Fanni Gyurinovics (54.64) | 3:28.00 | Q |
| 6 | 2 | 5 | Serbia | Velimir Stjepanović (49.22) Andrej Barna (48.33) Tanja Popović (55.60) Nina Stanisavljević (55.04) | 3:28.19 | Q, NR |
| 7 | 1 | 4 | Denmark | Mathias Rysgaard (49.08) Frederik Ried Lentz (48.60) Julie Kepp Jensen (54.64) Emily Gantriis (56.03) | 3:28.35 | Q, NR |
| 8 | 1 | 5 | Sweden | Björn Seeliger (49.77) Robin Hanson (49.28) Louise Hansson (54.26) Sara Junevik (55.17) | 3:28.48 | Q |
| 9 | 1 | 7 | Russia | Aleksandr Shchegolev (48.76) Ivan Girev (49.11) Arina Surkova (55.29) Anna Egorova (55.57) | 3:28.73 | |
| 10 | 1 | 3 | Ireland | Max McCusker (50.66) Jordan Sloan (50.13) Erin Riordan (56.27) Victoria Catterson (56.00) | 3:33.06 | NR |
| 11 | 2 | 0 | Turkey | Baturalp Ünlü (51.22) Yalım Acımış (50.31) Selen Özbilen (55.98) İlknur Nihan Çakıcı (55.99) | 3:33.50 | |
| 12 | 2 | 3 | Slovakia | Matej Duša (50.11) Ádám Halás (51.06) Martina Cibulková (56.61) Teresa Ivanová (55.89) | 3:33.67 | NR |
| 13 | 2 | 8 | Iceland | Dadó Fenrir Jasminuson (52.09) Kristinn Þórarinsson (52.25) Snæfríður Jórunnardóttir (56.24) Jóhanna Guðmundsdóttir (58.09) | 3:38.67 | NR |
| 14 | 1 | 6 | Andorra | Tomás Lomero (52.58) Bernat Lomero (52.30) Nàdia Tudó (1:00.10) Mónica Ramírez (58.59) | 3:43.57 | NR |
| 15 | 2 | 4 | Armenia | Artur Barseghyan (50.49) Vladimir Mamikonyan (53.70) Ani Poghosyan (1:01.02) Varsenik Manucharyan (59.96) | 3:45.17 | |
| 16 | 1 | 1 | Kosovo | Arti Krasniqi (55.01) Vigan Bytyqi (57.18) Eda Zeqiri (1:04.98) Era Budima (1:06.06) | 4:03.23 | |
| | 2 | 1 | Switzerland | Did not start | Did not start | Did not start |

### Final

The final was held at 19:31.
| Rank | Lane | Nation | Swimmers | Time | Notes |
| | 6 | Great Britain | Duncan Scott (48.20) Thomas Dean (48.11) Anna Hopkin (52.88) Freya Anderson (52.88) | 3:22.07 | =CR, NR |
| | 3 | Netherlands | Stan Pijnenburg (48.55) Jesse Puts (48.39) Ranomi Kromowidjojo (53.59) Femke Heemskerk (51.73) | 3:22.26 | |
| | 4 | Italy | Alessandro Miressi (47.63) Thomas Ceccon (47.59) Federica Pellegrini (53.58) Silvia Di Pietro (53.84) | 3:22.64 | NR |
| 4 | 5 | Poland | Jakub Kraska (49.19) Kacper Majchrzak (48.41) Alicja Tchórz (54.42) Katarzyna Wasick (53.57) | 3:25.59 | NR |
| 5 | 2 | Hungary | Nándor Németh (48.27) Richárd Bohus (48.62) Petra Senánszky (55.20) Fanni Gyurinovics (54.18) | 3:26.27 | |
| 6 | 8 | Sweden | Robin Hanson (49.53) Isak Eliasson (48.23) Louise Hansson (54.24) Sara Junevik (55.30) | 3:27.30 | |
| 7 | 7 | Serbia | Andrej Barna (48.42) Velimir Stjepanović (49.11) Tanja Popović (55.98) Nina Stanisavljević (54.84) | 3:28.35 | |
| | 1 | Denmark | Mathias Rysgaard (49.63) Frederik Ried Lentz Signe Bro Julie Kepp Jensen | DSQ | |