# Swimming at the 2024 World Aquatics Championships – Women's 100 metre butterfly

The Women's 100 metre butterfly competition at the 2024 World Aquatics Championships was held on 11 and 12 February 2024.

## Records

Prior to the competition, the existing world and championship records were as follows.
| World record | Sarah Sjöström (SWE) | 55.48 | Rio de Janeiro, Brazil | 7 August 2016 |
| Competition record | Sarah Sjöström (SWE) | 55.53 | Budapest, Hungary | 24 July 2017 |

## Results
### Heats

The heats were started on 11 February at 10:18.
| Rank | Heat | Lane | Name | Nationality | Time | Notes |
| 1 | 3 | 4 | Angelina Köhler | Germany | 56.41 | Q, NR |
| 2 | 4 | 4 | Louise Hansson | Sweden | 57.45 | Q |
| 3 | 3 | 5 | Erin Gallagher | South Africa | 57.59 | Q, AF |
| 4 | 5 | 5 | Brianna Throssell | Australia | 57.78 | Q |
| 5 | 5 | 4 | Claire Curzan | United States | 57.94 | Q |
| 6 | 4 | 5 | Alexandria Perkins | Australia | 58.10 | Q |
| 7 | 5 | 6 | Chiharu Iitsuka | Japan | 58.35 | Q |
| 8 | 5 | 3 | Barbora Seemanová | Czech Republic | 58.37 | Q |
| 9 | 4 | 2 | Helena Rosendahl Bach | Denmark | 58.67 | Q |
| 10 | 4 | 3 | Anna Ntountounaki | Greece | 58.72 | Q |
| 11 | 4 | 6 | Nagisa Ikemoto | Japan | 58.73 | Q |
| 12 | 4 | 0 | Anastasiya Kuliashova | Neutral Independent Athletes | 58.94 | Q |
| 13 | 3 | 7 | Farida Osman | Egypt | 59.11 | Q |
| 14 | 5 | 2 | Amina Kajtaz | Croatia | 59.14 | Q |
| 15 | 3 | 3 | Katerine Savard | Canada | 59.24 | Q |
| 16 | 3 | 1 | Park Jung-won | South Korea | 59.32 | Q |
| 17 | 3 | 6 | Paulina Peda | Poland | 59.47 | |
| 18 | 3 | 2 | Quah Jing Wen | Singapore | 59.61 | |
| 19 | 4 | 1 | Paula Juste | Spain | 59.82 | |
| 20 | 4 | 9 | Gong Zhenqi | China | 59.87 | |
| 21 | 4 | 7 | Mariana Pacheco | Portugal | 59.93 | |
| 22 | 5 | 9 | Laura Lahtinen | Finland | 1:00.06 | |
| 23 | 5 | 1 | Valentina Becerra | Colombia | 1:00.34 | |
| 24 | 3 | 8 | Sofia Spodarenko | Kazakhstan | 1:00.39 | |
| 24 | 4 | 8 | María José Mata Cocco | Mexico | 1:00.39 | |
| 26 | 5 | 8 | Natalie Kan | Hong Kong | 1:00.50 | |
| 27 | 5 | 7 | Sonia Laquintana | Italy | 1:01.31 | |
| 28 | 3 | 0 | Kamonchanok Kwanmuang | Thailand | 1:01.45 | |
| 29 | 3 | 9 | Jessica Calderbank | Jamaica | 1:01.82 | |
| 30 | 5 | 0 | Luana Alonso | Paraguay | 1:02.33 | |
| 31 | 2 | 5 | Varsenik Manucharyan | Armenia | 1:02.59 | |
| 32 | 2 | 3 | Ana Nizharadze | Georgia | 1:03.28 | |
| 33 | 2 | 6 | Oumy Diop | Senegal | 1:03.97 | |
| 34 | 2 | 7 | Lia Lima | Angola | 1:03.98 | |
| 35 | 2 | 2 | Imara Thorpe | Kenya | 1:04.81 | |
| 36 | 2 | 8 | María Fernández | Dominican Republic | 1:05.08 | |
| 37 | 2 | 1 | Cheang Weng Chi | Macau | 1:05.11 | |
| 38 | 2 | 0 | Rebecca Najem | Lebanon | 1:05.57 | |
| 39 | 1 | 7 | Mia Laban | Cook Islands | 1:07.35 | |
| 40 | 2 | 9 | Amaya Bollinger | Guam | 1:08.15 | |
| 41 | 1 | 4 | Sara Akasha | United Arab Emirates | 1:11.72 | |
| 42 | 1 | 5 | Naekeisha Louis | Saint Lucia | 1:14.92 | |
| 43 | 1 | 6 | Sonia Khatun | Bangladesh | 1:17.86 | |
| 44 | 1 | 3 | Amylia Chali | Tanzania | 1:19.92 | |
| 45 | 1 | 2 | Leena Mohamedahmed | Sudan | 1:36.65 | |
| | 2 | 4 | María Schutzmeier | Nicaragua | Did not start | Did not start |

### Semifinals

The semifinals were started on 11 February at 19:12.
| Rank | Heat | Lane | Name | Nationality | Time | Notes |
| 1 | 2 | 4 | Angelina Köhler | Germany | 56.11 | Q, NR |
| 2 | 2 | 3 | Claire Curzan | United States | 57.06 | Q |
| 3 | 1 | 5 | Brianna Throssell | Australia | 57.22 | Q |
| 4 | 1 | 4 | Louise Hansson | Sweden | 57.28 | Q |
| 5 | 1 | 2 | Anna Ntountounaki | Greece | 57.86 | Q |
| 6 | 2 | 5 | Erin Gallagher | South Africa | 57.92 | Q |
| 7 | 2 | 6 | Chiharu Iitsuka | Japan | 58.01 | Q |
| 8 | 1 | 3 | Alexandria Perkins | Australia | 58.05 | Q |
| 9 | 2 | 2 | Helena Rosendahl Bach | Denmark | 58.15 | |
| 10 | 1 | 6 | Barbora Seemanová | Czech Republic | 58.28 | |
| 11 | 2 | 7 | Nagisa Ikemoto | Japan | 58.61 | |
| 12 | 2 | 8 | Katerine Savard | Canada | 58.73 | |
| 13 | 1 | 8 | Park Jung-won | South Korea | 58.75 | |
| 14 | 1 | 7 | Anastasiya Kuliashova | Neutral Independent Athletes | 59.03 | |
| 15 | 2 | 1 | Farida Osman | Egypt | 59.12 | |
| 16 | 1 | 1 | Amina Kajtaz | Croatia | 59.22 | |

### Final

The final was held on 12 February at 19:09.
| Rank | Lane | Name | Nationality | Time |
| | 4 | Angelina Köhler | Germany | 56.28 |
| | 5 | Claire Curzan | United States | 56.61 |
| | 6 | Louise Hansson | Sweden | 56.94 |
| 4 | 3 | Brianna Throssell | Australia | 56.97 |
| 5 | 2 | Anna Ntountounaki | Greece | 57.62 |
| 6 | 8 | Alexandria Perkins | Australia | 57.68 |
| 7 | 7 | Erin Gallagher | South Africa | 57.83 |
| 8 | 1 | Chiharu Iitsuka | Japan | 58.23 |