The men's 400m freestyle S11 event at the 2012 Summer Paralympics took place at the London Aquatics Centre on 7 September. There were two heats; the swimmers with the eight fastest times advanced to the final.
Competed from 09:47.
Competed at 17:44.
Q = qualified for final. EU = European Record. AS = Asian Record. AF = African Record.
Official London 2012 Paralympics Results: Heats Archived 2012-09-13 at the Wayback Machine Official London 2012 Paralympics Results: Final Archived 2012-09-10 at the Wayback Machine