Swimming at the 1991 Pan American Games – Women's 100 metre freestyle
# Swimming at the 1991 Pan American Games – Women's 100 metre freestyle

The women's 100 metre freestyle competition of the swimming events at the 1991 Pan American Games took place on 12 August. The last Pan American Games champion was Silvia Poll of Costa Rica.

This race consisted of two lengths of the pool, both lengths being in freestyle.

## 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 12.

| Rank | Name | Nationality | Time |
| - | - | - | - |
| | Ashley Tappin | United States | 56.51 |
| | Megan Oesting | United States | 57.14 |
| | Kristin Topham | Canada | 57.63 |
| 4 | Deborah Figueroa | Cuba | 57.97 |
| 5 | Sharon Turner | Canada | 58.17 |
| 6 | Paolette Filippini | Brazil | 58.22 |
| 7 | Laura Sánchez | Mexico | 58.86 |
| 8 | Paula Marsiglia | Brazil | 58.89 |
