# Swimming at the 2007 World Aquatics Championships – Women's 100 metre breaststroke

The Women's 100m Breaststroke at the 2007 World Aquatics Championships took place on 26 March (prelims & semifinals) and the evening of 27 March (finals) at the Rod Laver Arena in Melbourne, Australia. 72 swimmers were entered in the event, of which 70 swam.
Existing records at the start of the event were:
* World Record (WR): 1:05.09, Leisel Jones (Australia), 20 March 2006 in Melbourne, Australia.
* Championship Record (CR): 1:06.20, Jessica Hardy (USA), Montreal 2005 (25 July 2005)

## Results
### Finals

| Place | Name | Nationality | Time | Note |
| 1st | Leisel Jones | Australia | 1:05.72 | CR |
| 2nd | Tara Kirk | USA | 1:06.34 | |
| 3rd | Anna Khlistunova | Ukraine | 1:07.27 | ER = |
| 4th | Jessica Hardy | USA | 1:07.38 | |
| 5th | Kirsty Balfour | Great Britain | 1:08.05 | |
| 6th | Tarnee White | Australia | 1:08.55 | |
| 7th | Kate Haywood | Great Britain | 1:08.72 | |
| 8th | Elena Bogomazova | Russia | 1:08.96 | |

### Semifinals

| Rank | Swimmer | Nation | Time | Note |
| 1 | Tara Kirk | USA | 1:06.72 | Q |
| 2 | Leisel Jones | Australia | 1:07.13 | Q |
| 3 | Anna Khlistunova | Ukraine | 1:07.49 | Q |
| 4 | Kirsty Balfour | Great Britain | 1:07.67 | Q |
| 5 | Jessica Hardy | USA | 1:07.92 | Q |
| 6 | Elena Bogomazova | Russia | 1:08.04 | Q |
| 7 | Tarnee White | Australia | 1:08.37 | Q |
| 8 | Kate Haywood | Great Britain | 1:08.49 | Q |
| 9 | Anne-Sophie Le Paranthoën | France | 1:08.68 | NR |
| 10 | Hanna Westrin | Sweden | 1:09.07 | |
| 11 | Asami Kitagawa | Japan | 1:09.11 | |
| 12 | Rebecca Ejdervik | Sweden | 1:09.39 | |
| 13 | Ina Kapishina | Belarus | 1:09.41 | |
| 14 | Birte Steven | Germany | 1:09.46 | |
| 15 | Anne-Mari Gulbrandsen | Norway | 1:09.50 | |
| 16 | Janne Schafer | Germany | 1:10.32 | |

### Preliminaries

| Rank | Swimmer | Nation | Time | Note |
| 1 | Tara Kirk | USA | 1:07.23 | Q |
| 2 | Leisel Jones | Australia | 1:07.53 | Q |
| 3 | Anna Khlistunova | Ukraine | 1:07.66 | Q |
| 4 | Hanna Westrin | Sweden | 1:08.30 | Q |
| 5 | Jessica Hardy | USA | 1:08.68 | Q |
| 6 | Anne-Sophie Le Paranthoën | France | 1:08.78 | Q |
| 7 | Tarnee White | Australia | 1:08.97 | Q |
| 8 | Elena Bogomazova | Russia | 1:09.11 | Q |
| 8 | Kate Haywood | Great Britain | 1:09.11 | Q |
| 10 | Kirsty Balfour | Great Britain | 1:09.13 | Q |
| 11 | Ina Kapishina | Belarus | 1:09.16 | Q |
| 12 | Rebecca Ejdervik | Sweden | 1:09.69 | Q |
| 13 | Anne-Mari Gulbrandsen | Norway | 1:09.70 | Q |
| 14 | Birte Steven | Germany | 1:09.77 | Q |
| 15 | Janne Schafer | Germany | 1:09.80 | Q |
| 16 | Asami Kitagawa | Japan | 1:09.87 | Q |
| 17 | Mirna Jukić | Austria | 1:09.92 | |
| 18 | Beata Kaminska | Poland | 1:10.05 | |
| 19 | Roberta Panara | Italy | 1:10.18 | |
| 20 | Yoshimi Miwa | Japan | 1:10.24 | |
| 21 | Annabelle Carey | New Zealand | 1:10.30 | |
| 22 | CHEN Huijia | China | 1:10.39 | |
| 23 | Chiara Boggiatto | Italy | 1:10.41 | |
| 24 | Yuliya Pidlisna | Ukraine | 1:10.63 | |
| 25 | Suzaan van Biljon | South Africa | 1:10.77 | |
| 26 | Seul Ki Jung | South Korea | 1:10.95 | |
| 27 | JI Liping | China | 1:11.08 | |
| 28 | Diana Gomes | Portugal | 1:11.18 | |
| 29 | Ciara Farrell | Ireland | 1:11.49 | |
| 30 | Camille Muffat | France | 1:12.24 | |
| 31 | Su Yeon Back | South Korea | 1:12.42 | |
| 32 | Adriana Marmolejo | Mexico | 1:12.45 | |
| 33 | Jaclyn Marissa Pangilinan | Philippines | 1:12.67 | |
| 34 | Louise Mai Jansen | Denmark | 1:12.83 | |
| 35 | Marina Kuc | Montenegro | 1:12.85 | |
| 36 | Sara Elbekri | Morocco | 1:13.28 | |
| 37 | Man Yi Yvette Kong | Hong Kong | 1:13.77 | |
| 38 | Daniela Victoria | Venezuela | 1:14.21 | |
| 39 | Valeria Silva | Peru | 1:14.26 | |
| 40 | Anastasia Christoforou | Cyprus | 1:15.06 | |
| 41 | I Chuan Chen | Chinese Taipei | 1:16.32 | |
| 42 | Lina Cahya Utami | Indonesia | 1:16.43 | |
| 43 | Desak Nyoman Rina | Indonesia | 1:16.60 | |
| 44 | Roanne Ho | Singapore | 1:16.86 | |
| 45 | Nilshaira Isenia | Netherlands Antilles | 1:18.12 | |
| 46 | Chun Hui Khoonnie Liang | Singapore | 1:18.39 | |
| 47 | Danielle Beaubrun | Saint Lucia | 1:18.42 | |
| 48 | On Kei Lei | Macao | 1:18.73 | |
| 49 | Thi Thuan Tran | Vietnam | 1:18.80 | |
| 50 | Katerine Moreno | Bolivia | 1:18.85 | |
| 51 | Natasha Moodie | Jamaica | 1:19.02 | |
| 52 | Dohi Eliane Droubry | Côte d'Ivoire | 1:19.62 | |
| 53 | Rachel Ah Koy | Fiji | 1:19.72 | |
| 54 | Chinyere Pigot | Suriname | 1:19.93 | |
| 55 | Blessing Forcados | Nigeria | 1:19.95 | |
| 56 | Karen Poujol Zepeda | Honduras | 1:20.38 | |
| 57 | Hernantenaina Ravoajanahary | Madagascar | 1:20.40 | |
| 58 | Thi Hue Pham | Vietnam | 1:20.78 | |
| 59 | Cai Lin Khoo | Malaysia | 1:20.82 | |
| 60 | Rachel Lannen | Guam | 1:20.82 | |
| 61 | Nibal Yamout | Lebanon | 1:20.98 | |
| 62 | Sin Ian Lei | Macao | 1:21.08 | |
| 63 | Ann Salnikova | Georgia | 1:22.69 | |
| 64 | Oksana Hatamkhanova | Azerbaijan | 1:23.07 | |
| 65 | Stacey Ryder | Swaziland | 1:23.47 | |
| 66 | Kelly How Tam Fat | Mauritius | 1:24.04 | |
| 67 | Monica Fernandovna Bernardo | Mozambique | 1:24.22 | |
| 68 | Samantha La Qua | Grenada | 1:25.10 | |
| 69 | Rovena Marku | Albania | 1:26.04 | |
| 70 | Aminath Inas Ismail | Maldives | 1:45.03 | |
| -- | Mahfuza Khatun | Bangladesh | DNS | |
| -- | Doli Akhter | Bangladesh | DNS | |