Swimming at the 2020 Summer Paralympics – Men's 100 metre butterfly S11
# Swimming at the 2020 Summer Paralympics – Men's 100 metre butterfly S11

The men's 100 metre butterfly S11 event at the 2020 Paralympic Games took place on 3 September 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 | Keiichi Kimura | Japan | 1:02.25 | Q |
| 2 | 1 | 4 | Uchu Tomita | Japan | 1:03.32 | Q |
| 3 | 2 | 5 | Rogier Dorsman | Netherlands | 1:05.64 | Q |
| 4 | 1 | 5 | Wendell Belarmino Pereira | Brazil | 1:06.59 | Q |
| 5 | 2 | 6 | Matthew Cabraja | Canada | 1:06.60 | Q |
| 6 | 1 | 6 | Viktor Smyrnov | Ukraine | 1:08.71 | Q |
| 7 | 2 | 3 | Yang Bozun | China | 1:10.13 | Q |
| 8 | 1 | 3 | Hua Dongdong | China | 1:10.71 | Q |
| 9 | 1 | 2 | Leider Albeiro Lemus Rojas | Colombia | 1:12.19 | |
| 10 | 2 | 2 | Mykhailo Serbin | Ukraine | 1:13.46 | |
| 11 | 2 | 7 | Már Gunnarsson | Iceland | 1:14.86 | |
| 12 | 2 | 1 | Marco Meneses | Portugal | 1:21.25 | |
| 13 | 1 | 7 | Matheus Rheine Correa de Souza | Brazil | 1:24.69 | |

## Final

100m butterfly final :

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