Swimming at the 2018 Commonwealth Games – Women's 100 metre breaststroke
The women's 100 metre breaststroke event at the 2018 Commonwealth Games was held on 8 and 9 April at the Gold Coast Aquatic Centre.Records
Prior to this competition, the existing world, Commonwealth and Games records were as follows:Results
Heats
The heats were held on 8 April at 11:47.
| Rank | Heat | Lane | Name | Nationality | Time | Notes |
| 1 | 3 | 3 | | | 1:07.40 | Q |
| 2 | 4 | 3 | | | 1:07.69 | Q |
| 3 | 2 | 3 | | | 1:07.72 | Q |
| 4 | 4 | 4 | | | 1:07.81 | Q |
| 5 | 3 | 3 | | | 1:08.50 | Q |
| 6 | 2 | 4 | | | 1:08.81 | Q |
| 7 | 4 | 5 | | | 1:08.87 | Q |
| 8 | 3 | 4 | | | 1:08.95 | Q |
| 9 | 3 | 6 | | | 1:09.06 | Q |
| 10 | 2 | 6 | | | 1:09.40 | Q |
| 10 | 3 | 2 | | | 1:09.40 | Q |
| 12 | 4 | 2 | | | 1:09.51 | Q |
| 13 | 2 | 7 | | | 1:09.71 | Q |
| 14 | 2 | 5 | | | 1:09.74 | Q |
| 15 | 4 | 6 | | | 1:09.83 | Q |
| 16 | 3 | 1 | | | 1:10.65 | Q |
| 17 | 3 | 7 | | | 1:10.78 | |
| 18 | 2 | 1 | | | 1:11.10 | |
| 19 | 2 | 2 | | | 1:11.34 | |
| 20 | 4 | 1 | | | 1:11.92 | |
| 21 | 4 | 8 | | | 1:12.01 | |
| 22 | 4 | 7 | | | 1:12.78 | |
| 23 | 3 | 8 | | | 1:15.06 | |
| 24 | 1 | 4 | | | 1:15.41 | |
| 25 | 1 | 5 | | | 1:17.29 | |
| 26 | 1 | 3 | | | 1:26.15 | |
Semifinals
The semifinals were held on 8 April at 21:03.Semifinal 2
Final
The final was held on 9 April at 21:12.
| Rank | Lane | Name | Nationality | Time | Notes |
| 4 | | | 1:06.41 | AF |
| 6 | | | 1:07.05 | |
| 5 | | | 1:07.22 | |
| 4 | 3 | | | 1:07.84 | |
| 5 | 8 | | | 1:07.87 | |
| 6 | 2 | | | 1:08.04 | |
| 7 | 1 | | | 1:08.36 | |
| 8 | 7 | | | 1:08.53 | |
