The Men's 100 metre breaststroke SB9 event at the 2016 Paralympic Games took place on 8 September 2016, at the Olympic Aquatics Stadium. Two heats were held. The swimmers with the eight fastest times advanced to the final.

Heats Heat 1 10:17 8 September 2016:

Rank Lane Name Nationality Time Notes 1 4 1:07.92 2 5 1:09.38 3 3 1:10.05 4 6 1:12.39 5 2 1:13.36 6 7 1:14.54 7 1 1:18.10

Heat 2 10:21 8 September 2016: Rank Lane Name Nationality Time Notes 1 4 1:06.19 2 3 1:07.33 3 6 1:08.72 4 5 1:09.34 5 2 1:09.63 6 7 1:13.63 7 1 1:16.79

Final 18:05 8 September 2016:

Rank Lane Name Nationality Time Notes 4 1:04.86 3 1:05.10 5 1:06.54 4 2 1:07.12 5 7 1:08.27 6 6 1:08.80 7 8 1:10.03 8 1 1:10.82

Notes