| London Aquatics Centre|
12 from 11 nations
| 30 August|
The women's 100m butterfly S9 event at the 2012 Summer Paralympics took place at the London Aquatics Centre on 30 August. There were two heats; the swimmers with the eight fastest times advanced to the final.
Swimming at the 2012 Summer Paralympics – Women's 100 metre butterfly S9 Wikipedia
Competed from 11:06.
Competed at 19:30.
'Q = qualified for final. AM = Americas Record. EU = European Record. OC = Oceania Record.