# 2024 World Aquatics Swimming Championships (25 m) – Women's 50 metre backstroke

The Women's 50 metre backstroke competition of the 2024 World Aquatics Swimming Championships (25 m) was held on 12 and 13 December 2024.

## Records

Prior to the competition, the existing world and championship records were as follows.
| World record | Maggie Mac Neil (CAN) | 25.25 | Melbourne, Australia | 16 December 2022 |
| Competition record | Maggie Mac Neil (CAN) | 25.25 | Melbourne, Australia | 16 December 2022 |
The following record was established during the competition:
| Date | Event | Name | Nationality | Time | Record |
| 13 December | Final | Regan Smith | United States | 25.23 | WR |

## Results
### Heats

The heats were started on 12 December at 9:02.
| Rank | Heat | Lane | Name | Nationality | Time | Notes |
| 1 | 5 | 1 | Katharine Berkoff | United States | 25.89 | Q |
| 2 | 6 | 5 | Ingrid Wilm | Canada | 26.06 | Q |
| 3 | 6 | 4 | Regan Smith | United States | 26.08 | Q |
| 4 | 6 | 1 | Kylie Masse | Canada | 26.11 | Q |
| 5 | 5 | 3 | Maaike de Waard | Netherlands | 26.19 | Q |
| 6 | 4 | 5 | Analia Pigrée | France | 26.22 | Q |
| 7 | 6 | 3 | Mizuki Hirai | Japan | 26.23 | Q |
| 8 | 5 | 5 | Sara Curtis | Italy | 26.35 | Q |
| 9 | 6 | 6 | Lora Komoróczy | Hungary | 26.38 | Q |
| 10 | 5 | 4 | Kira Toussaint | Netherlands | 26.48 | Q |
| 11 | 4 | 4 | Iona Anderson | Australia | 26.56 | Q |
| 12 | 6 | 9 | Hanna Rosvall | Sweden | 26.62 | Q |
| 13 | 4 | 3 | Danielle Hill | Ireland | 26.67 | Q |
| 14 | 4 | 6 | Anastasiya Shkurdai | Neutral Athletes A | 26.68 | Q |
| 15 | 5 | 0 | Fanny Teijonsalo | Finland | 26.74 | Q |
| 16 | 6 | 2 | Daryna Nabojčenko | Czech Republic | 26.86 | Q |
| 17 | 5 | 7 | Kalia Antoniou | Cyprus | 26.87 | R, NR |
| 18 | 5 | 8 | Pauline Mahieu | France | 26.88 | R |
| 19 | 3 | 7 | Miranda Grana | Neutral Athletes C | 26.96 | NR |
| 20 | 6 | 7 | Savannah-Eve Martin | New Zealand | 26.98 | |
| 21 | 5 | 2 | Jessica Thompson | South Africa | 27.10 | |
| 22 | 5 | 9 | Carmen Weiler | Spain | 27.13 | |
| 23 | 6 | 8 | Theodora Drakou | Greece | 27.14 | NR |
| 24 | 6 | 0 | Kim Seung-won | South Korea | 27.17 | |
| 25 | 5 | 6 | Lu Xingchen | China | 27.20 | |
| 26 | 4 | 8 | Adela Piskorska | Poland | 27.24 | |
| 27 | 4 | 2 | Elizaveta Agapitova | Neutral Athletes B | 27.39 | |
| 28 | 3 | 5 | Justine Murdock | Lithuania | 27.52 | |
| 29 | 2 | 4 | Abril Aunchayna | Uruguay | 27.57 | |
| 30 | 3 | 8 | Masniari Wolf | Indonesia | 27.70 | |
| 31 | 3 | 4 | Xeniya Ignatova | Kazakhstan | 27.75 | |
| 32 | 3 | 1 | Zuri Ferguson | Trinidad and Tobago | 27.83 | NR |
| 33 | 4 | 9 | Nika Sharafutdinova | Ukraine | 27.91 | |
| 34 | 4 | 1 | Cindy Cheung | Hong Kong | 28.23 | |
| 35 | 3 | 3 | Liao Yu-fei | Chinese Taipei | 28.27 | |
| 36 | 3 | 2 | Saovanee Boonamphai | Thailand | 28.28 | |
| 37 | 3 | 9 | Elizabeth Jiménez | Dominican Republic | 28.44 | |
| 38 | 2 | 5 | Jessica Humphrey | Namibia | 28.52 | NR |
| 39 | 3 | 0 | Wilina Jules-Marthe | Cape Verde | 28.92 | |
| 40 | 4 | 0 | Mariangela Boitšuk | Estonia | 29.02 | |
| 41 | 2 | 3 | Leanna Wainwright | Jamaica | 29.54 | |
| 42 | 2 | 6 | Lara Giménez | Paraguay | 29.60 | NR |
| 43 | 2 | 2 | Nubia Adjei | Ghana | 29.87 | |
| 44 | 1 | 6 | Jovana Kuljača | Montenegro | 30.10 | |
| 45 | 2 | 8 | Aaliyah Palestrini | Seychelles | 30.45 | |
| 46 | 2 | 7 | Chanchakriya Kheun | Cambodia | 30.59 | |
| 47 | 1 | 7 | Timipame-Ere Akiayefa | Nigeria | 30.64 | |
| 48 | 2 | 0 | Carolann Faeamani | Tonga | 31.13 | |
| 49 | 2 | 1 | Ganga Senavirathne | Sri Lanka | 31.72 | |
| 50 | 1 | 2 | Juthi Akter | Bangladesh | 31.94 | NR |
| 51 | 1 | 8 | Lina Goyayi | Tanzania | 34.25 | |
| 52 | 2 | 9 | Ammara Pinto | Malawi | 34.28 | |
| 53 | 1 | 4 | Meher Maqbool | Pakistan | 35.08 | |
| 54 | 1 | 1 | Aragsan Mugabo | Rwanda | 35.65 | |
| 55 | 1 | 5 | Grace Manuela Nguelo'o | Cameroon | 36.50 | |
| 56 | 1 | 3 | Kamila Ibrahim | Comoros | 37.91 | |
| | 3 | 6 | Teresa Ivan | Slovakia | Disqualified | Disqualified |
| | 4 | 7 | Janja Šegel | Slovenia | Did not start | Did not start |

### Semifinals

The semifinals were started on 12 December at 17:48.
| Rank | Heat | Lane | Name | Nationality | Time | Notes |
| 1 | 2 | 4 | Katharine Berkoff | United States | 25.51 | Q |
| 2 | 2 | 5 | Regan Smith | United States | 25.66 | Q |
| 3 | 1 | 4 | Ingrid Wilm | Canada | 25.81 | Q |
| 4 | 1 | 5 | Kylie Masse | Canada | 25.98 | Q |
| 5 | 1 | 6 | Sara Curtis | Italy | 26.03 | Q, WJ, NR |
| 6 | 2 | 3 | Maaike de Waard | Netherlands | 26.14 | Q |
| 7 | 1 | 3 | Analia Pigrée | France | 26.22 | Q |
| 8 | 2 | 7 | Iona Anderson | Australia | 26.25 | Q |
| 9 | 2 | 6 | Mizuki Hirai | Japan | 26.26 | R |
| 10 | 2 | 2 | Lora Komoróczy | Hungary | 26.27 | R |
| 11 | 2 | 1 | Danielle Hill | Ireland | 26.34 | |
| 12 | 1 | 2 | Kira Toussaint | Netherlands | 26.35 | |
| 12 | 1 | 7 | Hanna Rosvall | Sweden | 26.35 | |
| 14 | 1 | 1 | Anastasiya Shkurdai | Neutral Athletes A | 26.48 | |
| 15 | 1 | 8 | Daryna Nabojčenko | Czech Republic | 26.67 | |
| 16 | 2 | 8 | Fanny Teijonsalo | Finland | 26.72 | |

### Final

The final was held on 13 December at 18:04.
| Rank | Lane | Name | Nationality | Time | Notes |
| | 5 | Regan Smith | United States | 25.23 | WR |
| | 4 | Katharine Berkoff | United States | 25.61 | |
| | 6 | Kylie Masse | Canada | 25.78 | |
| 4 | 3 | Ingrid Wilm | Canada | 25.88 | |
| 5 | 1 | Analia Pigrée | France | 25.94 | NR |
| 6 | 2 | Sara Curtis | Italy | 26.26 | |
| 7 | 7 | Maaike de Waard | Netherlands | 26.28 | |
| 8 | 8 | Iona Anderson | Australia | 26.31 | |