# Swimming at the 2024 World Aquatics Championships – Women's 50 metre backstroke

The Women's 50 metre backstroke competition at the 2024 World Aquatics Championships was held on 14 and 15 February 2024.

## Records

Prior to the competition, the existing world and championship records were as follows.
| World record | Liu Xiang (CHN) | 26.98 | Jakarta, Indonesia | 21 August 2018 |
| Competition record | Zhao Jing (CHN) | 27.06 | Rome, Italy | 30 July 2009 |

## Results
### Heats

The heats were started on 14 February at 09:32.
| Rank | Heat | Lane | Name | Nationality | Time | Notes |
| 1 | 5 | 4 | Ingrid Wilm | Canada | 27.81 | Q |
| 2 | 6 | 4 | Lauren Cox | Great Britain | 27.89 | Q |
| 3 | 6 | 2 | Claire Curzan | United States | 27.99 | Q |
| 4 | 5 | 3 | Iona Anderson | Australia | 28.02 | Q |
| 5 | 6 | 5 | Theodora Drakou | Greece | 28.09 | Q |
| 6 | 4 | 4 | Adela Piskorska | Poland | 28.16 | Q |
| 7 | 5 | 7 | Stephanie Au | Hong Kong | 28.27 | Q |
| 8 | 5 | 6 | Costanza Cocconcelli | Italy | 28.28 | Q |
| 9 | 4 | 3 | Kira Toussaint | Netherlands | 28.33 | Q |
| 10 | 5 | 8 | Emma Harvey | Bermuda | 28.34 | Q, NR |
| 11 | 4 | 5 | Jaclyn Barclay | Australia | 28.36 | Q |
| 12 | 6 | 8 | Tayla Jonker | South Africa | 28.37 | Q, NR |
| 13 | 5 | 2 | Louise Hansson | Sweden | 28.38 | Q |
| 14 | 5 | 5 | Maaike de Waard | Netherlands | 28.39 | Q |
| 15 | 4 | 6 | Paulina Peda | Poland | 28.42 | Q |
| 16 | 6 | 6 | Kathleen Dawson | Great Britain | 28.46 | Q |
| 17 | 6 | 0 | Barbora Janíčková | Czech Republic | 28.65 | |
| 18 | 4 | 2 | Chen Jie | China | 28.67 | |
| 19 | 4 | 7 | Carmen Weiler | Spain | 28.68 | |
| 20 | 6 | 7 | Andrea Berrino | Argentina | 28.70 | |
| 21 | 6 | 1 | Tayde Sansores | Mexico | 28.76 | |
| 22 | 3 | 7 | Teresa Ivan | Slovakia | 28.90 | |
| 23 | 5 | 9 | Kim Seung-won | South Korea | 28.96 | |
| 24 | 6 | 3 | Roos Vanotterdijk | Belgium | 28.98 | |
| 25 | 6 | 9 | Nina Stanisavljević | Serbia | 29.00 | |
| 26 | 3 | 4 | Maria Godden | Ireland | 29.13 | |
| 27 | 5 | 1 | Camila Rebelo | Portugal | 29.19 | |
| 28 | 4 | 9 | Saovanee Boonamphai | Thailand | 29.22 | |
| 29 | 4 | 0 | Levenia Sim | Singapore | 29.35 | |
| 30 | 4 | 1 | Xeniya Ignatova | Kazakhstan | 29.40 | |
| 31 | 4 | 8 | Fanny Teijonsalo | Finland | 29.41 | |
| 32 | 3 | 8 | Donata Katai | Zimbabwe | 29.52 | |
| 33 | 3 | 3 | Anastasiya Shkurdai | | 29.58 | |
| 34 | 3 | 9 | Mia Phiri | Zambia | 29.61 | |
| 35 | 5 | 0 | Masniari Wolf | Indonesia | 29.80 | |
| 36 | 3 | 5 | Patricija Geriksonaitė | Lithuania | 29.88 | |
| 37 | 3 | 6 | Abril Aunchayna | Uruguay | 30.21 | |
| 38 | 3 | 1 | Suvana Chetana | India | 30.23 | |
| 39 | 3 | 0 | Ariuntamir Enkh-Amgalan | Mongolia | 30.32 | |
| 40 | 2 | 4 | Jessica Humphrey | Namibia | 30.43 | |
| 41 | 2 | 5 | Eda Zeqiri | Kosovo | 30.69 | |
| 42 | 2 | 3 | Gaurika Singh | Nepal | 30.80 | NR |
| 43 | 3 | 2 | Wu Yi-en | Chinese Taipei | 31.11 | |
| 44 | 2 | 6 | Chanchakriya Kheun | Cambodia | 31.18 | |
| 45 | 1 | 1 | Aaliyah Palestrini | Seychelles | 32.07 | |
| 46 | 2 | 8 | Carolann Faeamani | Tonga | 32.13 | |
| 47 | 2 | 7 | Denise Donelli | Mozambique | 32.21 | |
| 48 | 2 | 2 | Noor Yusuf | Bahrain | 32.39 | |
| 49 | 1 | 7 | Maleek Almukthar | Libya | 32.41 | |
| 50 | 2 | 1 | Idealy Tendrinavalona | Madagascar | 32.44 | |
| 51 | 2 | 0 | Jennifer Harding-Marlin | Saint Kitts and Nevis | 35.29 | |
| 52 | 2 | 9 | Tayamika Changanamuno | Malawi | 36.40 | |
| 53 | 1 | 5 | Kamila Ibrahim | Comoros | 40.21 | |
| 54 | 1 | 4 | Aïchata Diabaté | Mali | 52.22 | |
| 55 | 1 | 6 | Assita Diarra | Ivory Coast | 58.14 | |
| | 1 | 2 | Hearmela Melke | Eritrea | Did not start | Did not start |
| | 1 | 3 | Yaba Kamara | Sierra Leone | Did not start | Did not start |

### Semifinals

The semifinals were started on 14 February at 19:36.
| Rank | Heat | Lane | Name | Nationality | Time | Notes |
| 1 | 1 | 5 | Iona Anderson | Australia | 27.51 | Q |
| 2 | 1 | 4 | Lauren Cox | Great Britain | 27.55 | Q |
| 3 | 2 | 5 | Claire Curzan | United States | 27.65 | Q |
| 4 | 2 | 4 | Ingrid Wilm | Canada | 27.68 | Q |
| 5 | 2 | 3 | Theodora Drakou | Greece | 28.00 | Q |
| 6 | 1 | 3 | Adela Piskorska | Poland | 28.06 | Q |
| 7 | 2 | 1 | Louise Hansson | Sweden | 28.13 | Q |
| 7 | 2 | 2 | Kira Toussaint | Netherlands | 28.13 | Q |
| 9 | 1 | 1 | Maaike de Waard | Netherlands | 28.14 | |
| 9 | 1 | 6 | Costanza Cocconcelli | Italy | 28.14 | |
| 11 | 2 | 7 | Jaclyn Barclay | Australia | 28.17 | |
| 12 | 1 | 8 | Kathleen Dawson | Great Britain | 28.22 | |
| 13 | 2 | 8 | Paulina Peda | Poland | 28.33 | |
| 14 | 1 | 2 | Emma Harvey | Bermuda | 28.47 | |
| 15 | 1 | 7 | Tayla Jonker | South Africa | 28.48 | |
| 15 | 2 | 6 | Stephanie Au | Hong Kong | 28.48 | |

#### Swim-off

The swim-off was started on 14 February at 21:14.
| Rank | Lane | Name | Nationality | Time | Notes |
| 1 | 4 | Maaike de Waard | Netherlands | 27.89 | |
| 2 | 5 | Costanza Cocconcelli | Italy | 28.24 | |

### Final

The final was held on 15 February at 19:36.
| Rank | Lane | Name | Nationality | Time | Notes |
| | 3 | Claire Curzan | United States | 27.43 | |
| | 4 | Iona Anderson | Australia | 27.45 | |
| | 6 | Ingrid Wilm | Canada | 27.61 | |
| 4 | 5 | Lauren Cox | Great Britain | 27.65 | |
| 5 | 2 | Theodora Drakou | Greece | 27.84 | NR |
| 6 | 7 | Adela Piskorska | Poland | 28.09 | |
| 7 | 8 | Kira Toussaint | Netherlands | 28.18 | |
| 8 | 1 | Louise Hansson | Sweden | 28.32 | |