| Event: | Men's 50m Backstroke S4 |
| Games: | 2012 Summer |
| Win Value: | 45.75 |
| Venue: | London Aquatics Centre |
| Dates: | 6 September |
| Competitors: | 10 |
| Nations: | 8 |
| Gold: | Juan Reyes |
| Goldnpc: | MEX |
| Silver: | Aleksei Lyzhikhin |
| Silvernpc: | RUS |
| Bronze: | Gustavo Sánchez Martínez |
| Bronzenpc: | MEX |
The men's 50m backstroke S4 event at the 2012 Summer Paralympics took place at the London Aquatics Centre on 6 September. There were two heats; the swimmers with the eight fastest times advanced to the final.
Competed from 10:44.
| Rank | Lane | Name | Nationality | Time | Notes | |
|---|---|---|---|---|---|---|
| 1 | 4 | 45.16 | Q, EU | |||
| 2 | 3 | 46.48 | Q | |||
| 3 | 5 | 47.33 | Q | |||
| 4 | 6 | 50.95 | Q | |||
| 5 | 2 | 57.91 |
| Rank | Lane | Name | Nationality | Time | Notes | |
|---|---|---|---|---|---|---|
| 1 | 3 | 46.57 | Q | |||
| 2 | 4 | 47.40 | Q | |||
| 3 | 5 | 49.33 | Q | |||
| 4 | 6 | 51.92 | Q | |||
| 5 | 2 | 52.38 |
Competed at 18:52.
| Rank | Lane | Name | Nationality | Time | Notes | |
|---|---|---|---|---|---|---|
| 2 | 45.75 | |||||
| 3 | 46.73 | |||||
| 5 | 47.17 | |||||
| 4 | 6 | 48.41 | ||||
| 5 | 4 | 49.49 | ||||
| 6 | 7 | 50.30 | ||||
| 7 | 1 | 51.75 | ||||
| 8 | 8 | 52.51 |
Official London 2012 Paralympics Results: Heats
Official London 2012 Paralympics Results: Final