Swimming at the 2012 Summer Paralympics – Men's 50 metre backstroke S3
The men's 50m backstroke S3 event at the 2012 Summer Paralympics took place at the London Aquatics Centre on 8 September. There were two heats; the swimmers with the eight fastest times advanced to the final.
Results
Heats
Competed from 11:47.Heat 1
Heat 2
Final
Competed at 20:23.| Rank | Lane | Name | Nationality | Time | Notes |
| 4 | Min Byeong-eon | 42.51 | |||
| 5 | Dmytro Vynohradets | 46.26 | EU | ||
| 3 | Du Jianping | 46.48 | |||
| 4 | 6 | Miguel Angel Martinez Tajuelo | 51.83 | ||
| 5 | 7 | Li Hanhua | 52.03 | ||
| 6 | 1 | Mikael Fredriksson | 55.81 | ||
| 7 | 2 | Andrey Meshcheryakov | 56.11 | ||
| 8 | 8 | Javier Hernandez Aguiran | 56.89 |
Q = qualified for final. EU = European Record.