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

| Rank_ | Heat_Lane | Name_ | Nationality | Time_ |
|---|---|---|---|---|
| 25 | 13 (4) | Sviatlana Khakhlova | Belarus | 00: 56.52 |
| 25 | 15 (3) | Martina Moravcová | Slovakia | 00: 56.52 |
| 27 | 11 (3) | Ganna Dzerkal | Ukraine | 00: 56.53 |
| 28 | 17 (7) | Cristina Chiuso | Italy | 00: 56.56 |
| 29 | 15 (8) | Magdalena Kuras | Sweden | 00: 56.58 |
| 30 | 13 (5) | Jana Kolukanova | Estonia | 00: 56.67 |
| 31 | 12 (3) | Birgit Koschischek | Austria | 00: 56.75 |
| 32 | 12 (1) | Elina Partõka | Estonia | 00: 56.90 |
| 32 | 14 (5) | Flávia Delaroli | Brazil | 00: 56.90 |
| 34 | 10 (8) | Karin Prinsloo | South Africa | 00: 57.06 |
| 35 | 14 (8) | Hannah Wilson | Hong Kong | 00: 57.08 |
| 36 | 12 (7) | Miroslava Najdanovski | Serbia | 00: 57.11 |
| 36 | 16 (1) | Ionela Cozma | Romania | 00: 57.11 |