The Men's 100 metre butterfly S11 event at the 2016 Paralympic Games took place on 14 September 2016, at the Olympic Aquatics Stadium. No heats were held. The swimmers with the eight fastest times advanced to the final.

Final 18:48 14 September 2016:

Rank Lane Name Nationality Time Notes 3 1:02.24 4 1:02.43 5 1:03.38 4 6 1:03.52 5 2 1:06.99 6 7 1:08.64 7 1 1:12.41 8 8 1:13.87

Notes