Swimming at the 2016 Summer Paralympics – Women's 100 metre backstroke S8
The women's 100 metre backstroke S8 event at the 2016 Paralympic Games took place on 13 September 2016, at the Olympic Aquatics Stadium. Three heats were held. The swimmers with the eight fastest times advanced to the final.Heats
11:12 13 September 2016:
| Rank | Lane | Name | Nationality | Time | Notes |
| 1 | 4 | | | 1:18.92 | ' |
| 2 | 5 | | | 1:19.97 | ' |
| 3 | 3 | | | 1:21.81 | |
| 4 | 2 | | | 1:26.63 | |
| 5 | 6 | | | 1:26.65 | |
| 6 | 7 | | | 1:33.49 | |
Heat 2
11:16 13 September 2016:
| Rank | Lane | Name | Nationality | Time | Notes |
| 1 | 5 | | | 1:20.32 | ' |
| 2 | 4 | | | 1:20.79 | ' |
| 3 | 3 | | | 1:23.08 | |
| 4 | 6 | | | 1:24.82 | |
| 5 | 7 | | | 1:29.20 | |
| 6 | 2 | | | 1:29.48 | |
Heat 3
11:20 13 September 2016:
| Rank | Lane | Name | Nationality | Time | Notes |
| 1 | 4 | | | 1:13.75 | ' ' |
| 2 | 5 | | | 1:20.17 | ' |
| 3 | 3 | | | 1:22.47 | ' |
| 4 | 6 | | | 1:24.99 | |
| 5 | 2 | | | 1:25.12 | |
| 6 | 7 | | | 1:32.63 | |
Final
19:28 13 September 2016:
| Rank | Lane | Name | Nationality | Time | Notes |
| 4 | | | 1:13.02 | |
| 7 | | | 1:17.16 | |
| 5 | | | 1:18.12 | |
| 4 | 2 | | | 1:18.27 | |
| 5 | 6 | | | 1:19.42 | |
| 6 | 1 | | | 1:22.09 | |
| 7 | 8 | | | 1:22.17 | |
| 8 | 3 | | | 1:22.67 | |
