Swimming at the 1983 Pan American Games – Women's 100 metre butterfly
# Swimming at the 1983 Pan American Games – Women's 100 metre butterfly

The women's 100 metre butterfly competition of the swimming events at the 1983 Pan American Games took place on 20 August. The last Pan American Games champion was Jill Sterkel of US.

This race consisted of two lengths of the pool, all in butterfly.

## Results

All times are in minutes and seconds.

| KEY: | q | Fastest non-qualifiers | Q | Qualified | GR | Games record | NR | National record | PB | Personal best | SB | Seasonal best |
| - | - | - | - | - | - | - | - | - | - | - | - | - |

### Final

The final was held on August 20.

| Rank | Name | Nationality | Time |
| - | - | - | - |
| | Laurie Lehner | United States | 1:01.14 |
| | Michelle MacPherson | Canada | 1:01.63 |
| | Patty King | United States | 1:01.96 |
| 4 | Marie Moore | Canada | 1:03.32 |
| 5 | Jodie Lawaetz | U.S. Virgin Islands | 1:05.05 |
| 6 | Shelley Cramer | U.S. Virgin Islands | 1:05.27 |
| 7 | Sandra Revette | Venezuela | 1:05.34 |
| 8 | Rosemary Ribeiro | Brazil | 1:06.20 |
