Swimming at the 1991 World Aquatics Championships – Women's 100 metre freestyle
# Swimming at the 1991 World Aquatics Championships – Women's 100 metre freestyle

The women's 100 metre freestyle event at the 1991 World Aquatics Championships took place 7 January.

## Results

### Heats

The heats were held on 7 January at 10:03.

| Rank | Swimmer | Nation | Time |
| - | - | - | - |
| 1 | Catherine Plewinski | France | 55.61 |
| 2 | Nicole Haislett | United States | 56.09 |
| 3 | Yevgeniya Yermakova | Soviet Union | 56.55 |
| 4 | Zhuang Yong | China | 56.67 |
| 5 | Simone Osygus | Germany | 56.82 |
| 6 | Karin Brienesse | Netherlands | 56.86 |
| 7 | Manuela Stellmach | Germany | 56.96 |
| 8 | Julie Cooper | United States | 56.98 |
| 9 | Suzu Chiba | Japan | 56.99 |
| 10 | Wang Xiaohong | China | 57.01 |
| 11 | Gitta Jensen | Denmark | 57.29 |
| 12 | Inge de Bruijn | Netherlands | 57.37 |
| 13 | Susie O'Neill | Australia | 57.40 |
| 14 | Karen van Wirdum | Australia | 57.52 |
| 15 | Toni Jeffs | New Zealand | 57.60 |
| 16 | Luminița Dobrescu | Romania | 57.62 |
| 17 | Jacqueline Delord | France | 58.10 |
| 18 | Silvia Persi | Italy | 58.13 |
| 19 | Karen Pickering | United Kingdom | 58.10 |
| 20 | Silvia Poll | Costa Rica | 58.22 |
| 21 | Ilaria Sciorelli | Italy | 58.42 |
| 22 | Laura Sánchez | Mexico | 58.63 |
| 23 | Annette Poulsen | Denmark | 58.60 |
| 24 | María Rivera | Mexico | 59.05 |
| 25 | Tea Cerkverik | Yugoslavia | 59.09 |
| 26 | Annika Nilsson | Sweden | 59.17 |
| 27 | Lejia Kucukalic | Yugoslavia | 59.48 |
| 28 | Anne Boivoisin | Belgium | 59.61 |
| 29 | Sharon Page | United Kingdom | 59.82 |
| 30 | Timea Toth | Israel | 1:00.85 |
| 31 | Tamara Costache | Romania | 1:00.96 |
| 32 | Hung Cee Kay | Hong Kong | 1:01.00 |
| 33 | Elsa Manora Nasution | Indonesia | 1:01.54 |
| 34 | Yeyen Gunawan | Indonesia | 1:01.66 |
| 35 | Veronica Cummings | Guam | 1:02.99 |
| 36 | Sara Casadei | San Marino | 1:07.11 |
| - | Senda Gharbi | Tunisia | DNS |
| - | Eva Nyberg | Sweden | DNS |

### Finals

**Final B**

The final B was held on 7 January at 19:39.

| Rank | Name | Nationality | Time |
| - | - | - | - |
| 9 | Susie O'Neill | Australia | 56.20 |
| 10 | Inge de Bruijn | Netherlands | 56.58 |
| 11 | Suzu Chiba | Japan | 56.63 |
| 12 | Luminița Dobrescu | Romania | 56.90 |
| 13 | Karen van Wirdum | Australia | 57.08 |
| 14 | Jacqueline Delord | France | 57.57 |
| 15 | Silvia Persi | Italy | 57.66 |
| 16 | Toni Jeffs | New Zealand | 57.85 |

**Final A**

The final A was held on 7 January at 19:34.

| Rank | Name | Nationality | Time |
| - | - | - | - |
| | Nicole Haislett | United States | 55.17 |
| | Catherine Plewinski | France | 55.31 |
| | Zhuang Yong | China | 55.65 |
| 4 | Karin Brienesse | Netherlands | 56.34 |
| 5 | Manuela Stellmach | Germany | 56.45 |
| 6 | Simone Osygus | Germany | 56.55 |
| 7 | Yevgeniya Yermakova | Soviet Union | 56.56 |
| 8 | Julie Cooper | United States | 56.66 |
