# Swimming at the 2020 European Aquatics Championships – Men's 800 metre freestyle

The Men's 800 metre freestyle competition of the 2020 European Aquatics Championships was held on 21 and 22 May 2021.

## Records

Before the competition, the existing world, European and championship records were as follows.
| | Name | Nationality | Time | Location | Date |
| World record | Zhang Lin | China | 7:32.12 | Rome | 29 July 2009 |
| European record | Gregorio Paltrinieri | Italy | 7:39.27 | Gwangju | 24 July 2019 |
| Championship record | Gregorio Paltrinieri | Italy | 7:42.33 | London | 20 May 2016 |

## Results
### Heats

The heats were started on 21 May at 11:28.
| Rank | Heat | Lane | Name | Nationality | Time | Notes |
| 1 | 4 | 5 | Mykhailo Romanchuk | Ukraine | 7:48.31 | Q |
| 2 | 4 | 4 | Henrik Christiansen | Norway | 7:50.11 | Q |
| 3 | 5 | 3 | Gabriele Detti | Italy | 7:50.61 | Q |
| 4 | 5 | 4 | Gregorio Paltrinieri | Italy | 7:51.33 | Q |
| 5 | 5 | 6 | Sergiy Frolov | Ukraine | 7:51.73 | Q |
| 6 | 5 | 2 | Anton Ipsen | Denmark | 7:52.37 | Q |
| 7 | 2 | 1 | José Paulo Lopes | Portugal | 7:52.81 | Q, NR |
| 8 | 3 | 5 | Joris Bouchaut | France | 7:53.07 | Q |
| 9 | 4 | 6 | Aleksandr Egorov | Russia | 7:53.32 | |
| 10 | 4 | 7 | Damien Joly | France | 7:54.23 | |
| 11 | 4 | 9 | Daniel Wiffen | Ireland | 7:55.02 | |
| 12 | 2 | 3 | Victor Johansson | Sweden | 7:55.34 | |
| 13 | 3 | 7 | Yiğit Aslan | Turkey | 7:55.99 | |
| 14 | 3 | 3 | Kristóf Rasovszky | Hungary | 7:56.27 | |
| 15 | 4 | 0 | Ákos Kalmár | Hungary | 7:56.56 | |
| 16 | 5 | 9 | Alexander Nørgaard | Denmark | 7:57.24 | |
| 17 | 5 | 7 | Daniel Jervis | Great Britain | 7:57.39 | |
| 18 | 2 | 6 | Dimitrios Markos | Greece | 8:00.32 | |
| 19 | 5 | 8 | Marco De Tullio | Italy | 8:01.33 | |
| 20 | 2 | 7 | Arthur Dalén Ellegaard | Denmark | 8:02.69 | |
| 21 | 5 | 0 | Ilya Druzhinin | Russia | 8:03.01 | |
| 22 | 3 | 0 | Gergely Gyurta | Hungary | 8:03.83 | |
| 23 | 3 | 2 | Dimitrios Negris | Greece | 8:05.07 | |
| 24 | 2 | 9 | Jon Jøntvedt | Norway | 8:06.90 | |
| 25 | 2 | 8 | Alejandro Puebla | Spain | 8:07.28 | |
| 26 | 4 | 2 | Jan Micka | Czech Republic | 8:07.60 | |
| 27 | 2 | 2 | Ilya Borodin | Russia | 8:07.88 | |
| 28 | 4 | 1 | Kieran Bird | Great Britain | 8:08.36 | |
| 29 | 3 | 4 | Vuk Čelić | Serbia | 8:09.65 | |
| 30 | 2 | 0 | Márk Kovacsics | Hungary | 8:09.98 | |
| 31 | 2 | 5 | Oskar Lindholm | Denmark | 8:10.20 | |
| 32 | 3 | 1 | Martin Bau | Slovenia | 8:10.30 | |
| 33 | 2 | 4 | Bar Soloveychik | Israel | 8:13.62 | |
| 34 | 3 | 9 | Miguel Durán | Spain | 8:14.02 | |
| 35 | 5 | 5 | David Aubry | France | 8:14.25 | |
| 36 | 3 | 6 | Mert Kılavuz | Turkey | 8:15.92 | |
| 37 | 3 | 8 | Marin Mogić | Croatia | 8:22.50 | |
| 38 | 1 | 5 | Loris Bianchi | San Marino | 8:24.30 | NR |
| 39 | 1 | 4 | Arti Krasniqi | Kosovo | 8:25.68 | |
| 40 | 4 | 8 | Konstantinos Englezakis | Greece | 8:27.61 | |
| 41 | 1 | 3 | Théo Druenne | Monaco | 8:46.10 | |
| | 4 | 3 | Franko Grgić | Croatia | Did not start | Did not start |
| | 5 | 1 | Marc-Antoine Olivier | France | Did not start | Did not start |

### Final

The final was held on 22 May 2021 at 18:00.
| Rank | Lane | Name | Nationality | Time | Notes |
| | 4 | Mykhailo Romanchuk | Ukraine | 7:42.61 | |
| | 6 | Gregorio Paltrinieri | Italy | 7:43.62 | |
| | 3 | Gabriele Detti | Italy | 7:46.10 | |
| 4 | 5 | Henrik Christiansen | Norway | 7:47.99 | |
| 5 | 7 | Anton Ipsen | Denmark | 7:52.07 | |
| 6 | 1 | José Paulo Lopes | Portugal | 7:52.68 | NR |
| 7 | 8 | Joris Bouchaut | France | 7:52.85 | |
| 8 | 2 | Sergiy Frolov | Ukraine | 7:56.12 | |