Swimming at the 2007 World Aquatics Championships – Women's 100 metre freestyle Preliminaries Preliminaries

| Rank_ | Heat_Lane | Name_ | Nationality | Time_ |
|---|---|---|---|---|
| 38 | 14 (2) | Jorina Aerents | Belgium | 00: 57.18 |
| 39 | 13 (7) | Haruka Ueda | Japan | 00: 57.21 |
| 40 | 14 (3) | Petra Klosova | Czech Republic | 00: 57.28 |
| 41 | 12 (2) | Oxana Serikova | Ukraine | 00: 57.29 |
| 42 | 13 (2) | Chin Kuei Yang | Chinese Taipei | 00: 57.30 |
| 43 | 12 (5) | Olga Shulgina | Russia | 00: 57.48 |
| 44 | 10 (5) | Melanie Nocher | Ireland | 00: 57.72 |
| 45 | 11 (6) | Caroline Pickering Puamau | Fiji | 00: 57.85 |
| 45 | 14 (4) | Emily Vavourakis | Belgium | 00: 57.85 |
| 47 | 13 (8) | Pin Chieh Nieh | Chinese Taipei | 00: 57.93 |
| 48 | 8 (1) | Heather Brand | Zimbabwe | 00: 57.95 |
| 49 | 12 (8) | Jiratida Phinyosophon | Thailand | 00: 58.03 |