| Event: | Women's 100 metre butterfly |
| Games: | 1999 |
| Venue: | Pan Am Pool |
| Dates: | August 5 (preliminaries and finals) |
| Competitors: | - |
| Nations: | - |
| Win Label: | Winning score |
| Gold: | Karen Campbell |
| Goldnoc: | USA |
| Silver: | Jessica Deglau |
| Silvernoc: | CAN |
| Bronze: | Karine Chevrier |
| Bronzenoc: | CAN |
| Prev: | 1995 |
| Next: | 2003 |
The women's 100 metre butterfly competition of the swimming events at the 1999 Pan American Games took place on 5 August at the Pan Am Pool.[1] The last Pan American Games champion was Amy Van Dyken of US.[2] [3] [4] [5] [6] [7]
This race consisted of two lengths of the pool, all in butterfly.[8]
All times are in minutes and seconds.
The first round was held on August 5.
| Rank | Name | Nationality | Time | Notes | |
|---|---|---|---|---|---|
| 1 | 59.70 | Q, GR | |||
| 2 | - | - | - | Q | |
| 3 | - | - | - | Q | |
| 4 | 1:02.51 | Q | |||
| 5 | - | - | - | Q | |
| 6 | - | - | - | Q | |
| 7 | - | - | - | Q | |
| 8 | - | - | - | Q |
The B final was held on August 5.[9]
| Rank | Name | Nationality | Time | Notes | |
|---|---|---|---|---|---|
| 9 | 1:04.08 | ||||
| 10 | 1:04.99 | ||||
| 11 | 1:05.79 | ||||
| 12 | 1:06.02 | ||||
| 13 | 1:06.51 | ||||
| 14 | 1:06.53 | ||||
| 15 | 1:06.78 | ||||
| 16 | 1:07.35 |
The A final was held on August 5.
| Rank | Name | Nationality | Time | Notes | |
|---|---|---|---|---|---|
| 1:00.05 | |||||
| 1:00.70 | |||||
| 1:01.15 | |||||
| 4 | 1:01.97 | ||||
| 5 | 1:02.76 | ||||
| 6 | 1:02.78 | ||||
| 7 | 1:03.35 | ||||
| 8 | 1:03.64 |