Swimming at the 2020 Summer Paralympics – Men's 400 metre freestyle S13
# Swimming at the 2020 Summer Paralympics – Men's 400 metre freestyle S13

The men's 400 metre freestyle S13 event at the 2020 Paralympic Games took place on 27 August 2021, at the Tokyo Aquatics Centre.

## Heats

The swimmers with the top eight times, regardless of heat, advanced to the final.

| Rank | Heat | Lane | Name | Nationality | Time | Notes |
| - | - | - | - | - | - | - |
| 1 | 2 | 4 | Ihar Boki | Belarus | 4:06.02 | Q |
| 2 | 1 | 4 | Kyrylo Garashchenko | Ukraine | 4:10.42 | Q |
| 3 | 2 | 5 | Alex Portal | France | 4:11.07 | Q |
| 4 | 2 | 6 | Vladimir Sotnikov | RPC | 4:20.66 | Q |
| 5 | 2 | 2 | Taliso Engel | Germany | 4:21.09 | Q |
| 6 | 1 | 5 | Braedan Jason | Australia | 4:21.59 | Q |
| 7 | 2 | 3 | Ivan Salguero Oteiza | Spain | 4:21.94 | Q |
| 8 | 1 | 3 | Sergey Punko | RPC | 4:28.91 | Q |
| 9 | 1 | 6 | Genki Saito | Japan | 4:29.03 | |
| 10 | 1 | 2 | Danylo Chufarov | Ukraine | 4:37.26 | |

## Final

400m freestyle final :

| Rank | Lane | Name | Nationality | Time | Notes |
| - | - | - | - | - | - |
