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

The Women's 100m Butterfly at the 2007 World Aquatics Championships took place on 25 March (prelims & semifinals) and the evening of 26 March (finals) at the Rod Laver Arena in Melbourne, Australia. 75 swimmers were entered in the event, of which 74 swam.
Existing records at the start of the event were:
* World Record (WR): 56.61, Inge de Bruijn (Netherlands), 17 September 2000 in Sydney, Australia.
* Championship Record (CR): 57.23, Jessicah Schipper (Australia), Montreal 2005 (25 July 2005)

## Results
### Final

| Place | Lane | Name | Country | 50 m split | Time | Note |
| | 5 | Lisbeth Lenton | Australia | 26.58 | 57.15 | CR |
| | 4 | Jessicah Schipper | Australia | 26.74 | 57.24 | |
| | 6 | Natalie Coughlin | USA | 26.40 | 57.34 | |
| 4 | 3 | Inge Dekker | Netherlands | 26.79 | 58.30 | |
| 5 | 7 | Rachel Komisarz | USA | 27.45 | 58.34 | |
| 6 | 1 | Alena Popchanka | France | 26.97 | 58.73 | |
| 7 | 2 | Zhou Yafei | China | 26.90 | 58.76 | |
| 8 | 8 | Xu Yanwei | China | 27.07 | 59.22 | |

### Semifinals

| Rank | Heat/Lane | Name | Country | 50 m split | Time | Note |
| 1 | H2-L5 | Jessicah Schipper | Australia | 26.82 | 57.57 | Q |
| 2 | H2-L6 | Lisbeth Lenton | Australia | 26.71 | 57.78 | Q |
| 3 | H1-L5 | Inge Dekker | Netherlands | 26.32 | 57.82 | Q |
| 4 | H1-L4 | Natalie Coughlin | USA | 26.64 | 58.11 | Q |
| 5 | H1-L2 | Zhou Yafei | China | 26.69 | 58.20 | Q |
| 6 | H2-L4 | Rachel Komisarz | USA | 27.07 | 58.39 | Q |
| 7 | H1-L6 | Alena Popchanka | France | 27.24 | 58.49 | Q |
| 8 | H2-L2 | Xu Yanwei | China | 27.20 | 58.82 | Q |
| 9 | H1-L8 | Tao Li | Singapore | 27.63 | 59.07 | |
| 10 | H2-L3 | Irina Bespalova | Russia | 27.43 | 59.10 | |
| 11 | H1-L7 | Antje Buschschulte | Germany | 26.91 | 59.12 | |
| 12 | H2-L1 | Sara Isaković | Slovenia | 27.35 | 59.16 | |
| 13 | H1-L3 | Natalya Sutyagina | Russia | 27.35 | 59.17 | |
| 14 | H1-L1 | Daniela Samulski | Germany | 27.26 | 59.35 | |
| 15 | H2-L7 | Mackenzie Downing | Canada | 28.06 | 59.61 | |
| 16 | H2-L8 | Keri-Leigh Shaw | South Africa | 27.71 | 1:00.50 | |

### Preliminaries

| Heat | Lane | Name | Country | 50 m split | Time | Overall rank | Note |
| 1 | 5 | Nicole Ellsworth | Mauritius | 32.93 | 1:10.55 | 71 | |
| 1 | 4 | Emma Hunter | Samoa | 31.65 | 1:10.76 | 72 | |
| 1 | 3 | Ana Roxiero | Angola | | DNS | |
| 2 | 6 | Layla Alghul | Jordan | 31.18 | 1:07.00 | 59 | |
| 2 | 3 | Karen Torrez | Bolivia | 32.22 | 1:08.47 | 62 | |
| 2 | 5 | Razan Taha | Jordan | 31.84 | 1:09.25 | 65 | |
| 2 | 4 | Mandhavi Giri Govind | India | 32.02 | 1:09.41 | 66 | |
| 2 | 8 | Marie Laura Meza Peraza | Costa Rica | 32.60 | 1:09.93 | 67 | |
| 2 | 7 | Fiorella Gomez-Sanchez | Peru | 32.75 | 1:10.00 | 68 | |
| 2 | 1 | Prisca Rose | Mauritius | 31.98 | 1:10.38 | 70 | |
| 2 | 2 | Dalia Massiel Torrez Zamora | Nicaragua | 32.15 | 1:11.72 | 73 | |
| 3 | 4 | Cheok Mei Ma | Macau | 30.50 | 1:05.00 | 51 | |
| 3 | 6 | Angela Galea | Malta | 31.38 | 1:05.75 | 54 | |
| 3 | 7 | Davina Mangion | Malta | 31.12 | 1:06.39 | 57 | |
| 3 | 1 | Galina Dukhanova | Uzbekistan | 31.12 | 1:06.98 | 58 | |
| 3 | 2 | Binta Zahra Diop | Senegal | 31.19 | 1:07.01 | 60 | |
| 3 | 5 | Ana Guadalupe Hernandez Duarte | El Salvador | 31.85 | 1:08.59 | 64 | |
| 3 | 8 | Maria Alejandra Torres | Peru | 32.26 | 1:10.14 | 69 | |
| 3 | 3 | Mirjana Stojanova | Macedonia | 32.61 | 1:13.01 | 74 | |
| 4 | 5 | Ellen Hight | Zambia | 29.60 | 1:03.76 | 48 | |
| 4 | 4 | Maria Rodriguez | Venezuela | 29.95 | 1:03.93 | 49 | |
| 4 | 3 | Koh Ting Ting | Singapore | 30.29 | 1:05.00 | 51 | |
| 4 | 7 | Ira Kurniawan | Indonesia | 30.69 | 1:05.68 | 53 | |
| 4 | 1 | Sharon Paola Fajardo Sierra | Honduras | 30.79 | 1:05.88 | 55 | |
| 4 | 2 | Monika Spasova | Macedonia | 31.26 | 1:05.89 | 56 | |
| 4 | 6 | Thi Hanh Phan | Vietnam | 31.38 | 1:07.01 | 60 | |
| 4 | 8 | Cai Lin Khoo | Malaysia | 32.09 | 1:08.50 | 63 | |
| 5 | 7 | Anna Gostomelsky | Israel | 28.08 | 1:00.37 | 25 | |
| 5 | 4 | Fabíola Molina | Brazil | 28.86 | 1:01.18 | 35 | |
| 5 | 5 | Amit Ivry | Israel | 28.54 | 1:01.22 | 36 | |
| 5 | 6 | Heather Brand | Zimbabwe | 28.43 | 1:01.64 | 40 | |
| 5 | 2 | Hang Yu Sze | Hong Kong | 28.74 | 1:01.92 | 43 | |
| 5 | 3 | Iris Rosenberger | Turkey | 29.12 | 1:02.26 | 45 | |
| 5 | 8 | Loren Bahamonde | Ecuador | 29.54 | 1:03.65 | 47 | |
| 5 | 1 | Chanelle van Wyk | South Africa | 29.39 | 1:04.55 | 50 | |
| 6 | 1 | Gabriella Fagundez | Sweden | 28.26 | 1:00.64 | 30 | |
| 6 | 5 | Sara Oliveira | Portugal | 28.49 | 1:00.81 | 31 | |
| 6 | 6 | Petra Granlund | Sweden | 28.38 | 1:00.95 | 32 | |
| 6 | 4 | Jessica Dickons | Great Britain | 28.94 | 1:01.11 | 34 | |
| 6 | 8 | Sara Madeira | Portugal | 28.48 | 1:01.39 | 38 | |
| 6 | 2 | You Ri Kown | South Korea | 28.99 | 1:01.85 | 41 | |
| 6 | 3 | Micha Jensen | Denmark | 28.31 | 1:02.15 | 44 | |
| 6 | 7 | Denisa Smolenova | Slovakia | 29.38 | 1:03.54 | 46 | |
| 7 | 7 | Keri-Leigh Shaw | South Africa | 27.76 | 59.79 | 15 | Q |
| 7 | 4 | Jeanette Ottesen | Denmark | 27.89 | 1:00.04 | 19 | |
| 7 | 6 | Birgit Koschischek | Austria | 27.92 | 1:00.19 | 22 | |
| 7 | 1 | Kimberly Buys | Belgium | 27.98 | 1:00.37 | 25 | |
| 7 | 5 | Audrey Lacroix | Canada | 28.44 | 1:00.40 | 27 | |
| 7 | 2 | Aleksandra Urbanczyk | Poland | 28.19 | 1:01.22 | 36 | |
| 7 | 8 | Hannah Wilson | Hong Kong | 28.74 | 1:01.49 | 39 | |
| 7 | 3 | Hae In Shin | South Korea | 28.64 | 1:01.85 | 41 | |
| 8 | 4 | Natalie Coughlin | USA | 26.97 | 58.34 | 2 | Q |
| 8 | 5 | Zhou Yafei | China | 27.45 | 59.36 | 10 | Q |
| 8 | 8 | Sara Isaković | Slovenia | 27.48 | 59.40 | 13 | Q |
| 8 | 3 | Daniela Samulski | Germany | 27.40 | 59.70 | 14 | Q |
| 8 | 2 | Terri Dunning | Great Britain | 28.14 | 59.87 | 17 | |
| 8 | 1 | Aurore Mongel | France | 27.99 | 1:00.13 | 21 | |
| 8 | 6 | Yuko Nakanishi | Japan | 28.61 | 1:00.31 | 23 | |
| 8 | 7 | Francesca Segat | Italy | 28.80 | 1:00.53 | 29 | |
| 9 | 5 | Inge Dekker | Netherlands | 26.97 | 58.66 | 4 | Q |
| 9 | 7 | Irina Bespalova | Russia | 27.70 | 58.71 | 5 | Q |
| 9 | 6 | Natalya Sutyagina | Russia | 27.52 | 58.72 | 6 | Q |
| 9 | 4 | Lisbeth Lenton | Australia | 27.35 | 58.93 | 7 | Q |
| 9 | 3 | Xu Yanwei | China | 27.54 | 59.23 | 9 | Q |
| 9 | 8 | Mackenzie Downing | Canada | 27.90 | 59.36 | 10 | Q |
| 9 | 2 | Martina Moravcová | Slovakia | 28.17 | 1:00.02 | 18 | |
| 9 | 1 | Chantal Groot | Netherlands | 28.02 | 1:00.09 | 20 | |
| 10 | 5 | Rachel Komisarz | USA | 27.51 | 57.98 | 1 | Q |
| 10 | 4 | Jessicah Schipper | Australia | 27.46 | 58.52 | 3 | Q |
| 10 | 3 | Alena Popchanka | France | 27.58 | 59.14 | 8 | Q |
| 10 | 6 | Antje Buschschulte | Germany | 27.12 | 59.39 | 12 | Q |
| 10 | 2 | Tao Li | Singapore | 28.31 | 59.79 | 15 | Q |
| 10 | 1 | Ayako Doi | Japan | 27.76 | 1:00.31 | 23 | |
| 10 | 8 | Elena Gemo | Italy | 27.94 | 1:00.46 | 28 | |
| 10 | 7 | Beatrix Boulsevicz | Hungary | 28.44 | 1:01.04 | 33 | |