The women's 100m butterfly S8 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.
Competed from 10:31.
Competed at 18:30.
'Q = qualified for final. PR = Paralympic Record. OC = Oceania Record.
Official London 2012 Paralympics Results: Heats Archived 2012-09-13 at the Wayback Machine Official London 2012 Paralympics Results: Final Archived 2012-09-13 at the Wayback Machine