The women's 100 metre backstroke S11 event at the 2016 Paralympic Games took place on 9 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 10:32 9 September 2016:

Rank Lane Name Nationality Time Notes 1 6 1:20.59 2 4 1:21.81 3 5 1:22.01 4 2 1:23.34 5 3 1:25.19 6 1 1:28.35 7 7 1:30.58 8 8 1:35.66

Heat 2 10:37 9 September 2016: Rank Lane Name Nationality Time Notes 1 4 1:18.68 2 3 1:21.90 3 2 1:25.36 4 5 1:26.12 5 6 1:28.28 6 7 1:30.28 7 8 1:31.16 8 1 1:32.53

Final 19:19 9 September 2016:

Rank Lane Name Nationality Time Notes 4 1:17.96 5 1:20.29 1 1:21.46 4 3 1:21.86 5 6 1:22.69 6 7 1:22.97 7 2 1:23.12 8 8 1:25.40

Notes