| 12 September|
| 12 from 11 nations|
| Beijing National Aquatics Center|
The men's 100m breaststroke SB5 event at the 2008 Summer Paralympics took place at the Beijing National Aquatics Center on 12 September. There were two heats; the swimmers with the eight fastest times advanced to the final.
Swimming at the 2008 Summer Paralympics – Men's 100 metre breaststroke SB5 Wikipedia
Competed from 10:18.
Competed at 18:42.
Q = qualified for final.