The women's 100 metre butterfly event at the 1968 Olympic Games took place between 20 and 21 October.[1] This swimming event used the butterfly stroke. Because an Olympic size swimming pool is 50 metres long, this race consisted of two lengths of the pool.
Heat 1
| Rank | Athlete | Country | Time | Note | |
|---|---|---|---|---|---|
| 1 | 1:07.7 | ||||
| 2 | 1:08.5 | ||||
| 3 | Jeanne Warren | 1:10.0 | |||
| 4 | 1:10.1 | ||||
| 5 | 1:12.4 | ||||
| 6 | 1:16.9 |
Heat 2
| Rank | Athlete | Country | Time | Note | |
|---|---|---|---|---|---|
| 1 | 1:07.2 | ||||
| 2 | 1:07.6 | ||||
| 3 | 1:09.2 | ||||
| 4 | 1:09.5 | ||||
| 5 | 1:11.2 | ||||
| 6 | 1:13.1 | ||||
| 7 | 1:14.6 |
Heat 3
| Rank | Athlete | Country | Time | Note | |
|---|---|---|---|---|---|
| 1 | 1:06.1 | ||||
| 2 | 1:07.4 | ||||
| 3 | 1:12.0 |
Heat 4
| Rank | Athlete | Country | Time | Note | |
|---|---|---|---|---|---|
| 1 | 1:08.0 | ||||
| 2 | 1:08.1 | ||||
| 3 | 1:08.5 | ||||
| 4 | 1:14.7 | ||||
| 5 | 1:15.3 | ||||
| 6 | 1:17.1 |
Heat 5
| Rank | Athlete | Country | Time | Note | |
|---|---|---|---|---|---|
| 1 | 1:06.2 | ||||
| 2 | 1:08.5 | ||||
| 3 | 1:10.6 | ||||
| 4 | 1:10.7 | ||||
| 5 | 1:13.5 | ||||
| 6 | 1:16.5 |
Heat 1
| Rank | Athlete | Country | Time | Note | |
|---|---|---|---|---|---|
| 1 | 1:06.2 | ||||
| 2 | 1:06.3 | ||||
| 3 | 1:06.6 | ||||
| 4 | 1:07.0 | ||||
| 5 | 1:07.9 | ||||
| 6 | 1:08.2 | ||||
| 7 | Jeanne Warren | 1:09.7 | |||
| 8 | 1:10.6 |
Heat 2
| Rank | Athlete | Country | Time | Note | |
|---|---|---|---|---|---|
| 1 | 1:06.1 | ||||
| 2 | 1:06.1 | ||||
| 3 | 1:07.7 | ||||
| 4 | 1:08.4 | ||||
| 5 | 1:08.5 | ||||
| 6 | 1:08.7 | ||||
| 7 | 1:08.7 | ||||
| 8 | 1:09.4 |
| Rank | Athlete | Country | Time | Notes | |
|---|---|---|---|---|---|
| 1:05.5 | |||||
| 1:05.8 | |||||
| 1:06.2 | |||||
| 4 | 1:06.2 | ||||
| 5 | 1:06.8 | ||||
| 6 | 1:06.9 | ||||
| 7 | 1:07.5 | ||||
| 8 | 1:07.6 |