The men's 100m butterfly S12 event at the 2012 Summer Paralympics took place at the London Aquatics Centre on 2 September. There were two heats; the swimmers with the eight fastest times advanced to the final.
Competed from 10:56.
Competed at 19:02.
Q = qualified for final.
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
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