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

The Women's 50 metre breaststroke competition at the 2024 World Aquatics Championships was held on 17 and 18 February 2024.

## Records

Prior to the competition, the existing world and championship records were as follows.
| World record | Rūta Meilutytė (LTU) | 29.16 | Fukuoka, Japan | 30 July 2023 |
| Competition record | Rūta Meilutytė (LTU) | 29.16 | Fukuoka, Japan | 30 July 2023 |

## Results
### Heats

The heats were started on 17 February at 10:08.
| Rank | Heat | Lane | Name | Nationality | Time | Notes |
| 1 | 4 | 4 | Benedetta Pilato | Italy | 29.89 | Q |
| 2 | 3 | 5 | Tang Qianting | China | 29.93 | Q |
| 3 | 5 | 4 | Rūta Meilutytė | Lithuania | 30.05 | Q |
| 4 | 3 | 4 | Lara van Niekerk | South Africa | 30.28 | Q |
| 5 | 5 | 7 | Ida Hulkko | Finland | 30.36 | Q |
| 6 | 5 | 3 | Veera Kivirinta | Finland | 30.53 | Q |
| 7 | 4 | 5 | Mona McSharry | Ireland | 30.72 | Q |
| 8 | 4 | 3 | Sophie Hansson | Sweden | 30.83 | Q |
| 9 | 4 | 7 | Silje Slyngstadli | Norway | 30.86 | Q, NR |
| 9 | 4 | 1 | Sophie Angus | Canada | 30.86 | Q |
| 11 | 5 | 6 | Dominika Sztandera | Poland | 30.91 | Q |
| 12 | 5 | 5 | Anita Bottazzo | Italy | 30.94 | Q |
| 13 | 3 | 7 | Yang Chang | China | 31.02 | Q |
| 14 | 4 | 6 | Fleur Vermeiren | Belgium | 31.08 | Q |
| 15 | 5 | 2 | Piper Enge | United States | 31.09 | Q |
| 16 | 3 | 6 | Ana Rodrigues | Portugal | 31.25 | Q |
| 17 | 3 | 8 | Thanya Dela Cruz | Philippines | 31.27 | |
| 18 | 5 | 1 | Macarena Ceballos | Argentina | 31.32 | |
| 19 | 4 | 8 | Jenjira Srisaard | Thailand | 31.35 | |
| 20 | 3 | 2 | Maria-Thaleia Drasidou | Greece | 31.49 | |
| 21 | 2 | 3 | Chen Pui Lam | Macau | 31.56 | NR |
| 22 | 4 | 9 | Tara Vovk | Slovenia | 31.65 | |
| 23 | 5 | 9 | Stefanía Gómez | Colombia | 31.75 | |
| 24 | 3 | 1 | Ana Carolina Vieira | Brazil | 31.81 | |
| 25 | 5 | 0 | Jimena Ruiz | Spain | 31.99 | |
| 26 | 2 | 6 | Lanihei Connolly | Cook Islands | 32.03 | |
| 27 | 5 | 8 | Lin Pei-wun | Chinese Taipei | 32.10 | |
| 28 | 3 | 9 | Melissa Rodríguez | Mexico | 32.15 | |
| 29 | 2 | 5 | Lam Hoi Kiu | Hong Kong | 32.57 | |
| 30 | 2 | 4 | Phee Jinq En | Malaysia | 32.70 | |
| 31 | 2 | 7 | Ellie Shaw | Antigua and Barbuda | 32.73 | NR |
| 32 | 3 | 0 | Lisa Mamié | Switzerland | 32.88 | |
| 33 | 1 | 6 | Alicia Kok Shun | Mauritius | 33.19 | |
| 34 | 2 | 0 | Kirabo Namutebi | Uganda | 33.71 | |
| 35 | 2 | 2 | Victoria Russell | Bahamas | 34.03 | |
| 36 | 2 | 1 | Naiara Roca | Bolivia | 35.20 | |
| 37 | 2 | 8 | N'Hara Fernandes | Angola | 36.34 | |
| 38 | 2 | 9 | Taeyanna Adams | Micronesia | 37.87 | |
| 39 | 1 | 4 | Mariama Touré | Guinea | 40.83 | |
| 40 | 1 | 5 | Nina Amison | Djibouti | 45.87 | |
| 41 | 1 | 3 | Olamide Sam | Sierra Leone | 1:04.78 | |
| | 4 | 0 | Adelaida Pchelintseva | Kazakhstan | Disqualified | Disqualified |
| | 1 | 2 | Rita Acaba Ocomo | Equatorial Guinea | Did not start | Did not start |
| | 3 | 3 | Kotryna Teterevkova | Lithuania | Did not start | Did not start |
| | 4 | 2 | Charlotte Bonnet | France | Did not start | Did not start |

### Semifinals

The semifinals were held on 17 February at 19:25.
| Rank | Heat | Lane | Name | Nationality | Time | Notes |
| 1 | 2 | 5 | Rūta Meilutytė | Lithuania | 29.42 | Q |
| 2 | 1 | 4 | Tang Qianting | China | 29.80 | Q, AS |
| 3 | 2 | 4 | Benedetta Pilato | Italy | 29.91 | Q |
| 4 | 2 | 8 | Piper Enge | United States | 30.53 | Q |
| 5 | 1 | 5 | Lara van Niekerk | South Africa | 30.56 | Q |
| 6 | 1 | 3 | Veera Kivirinta | Finland | 30.57 | Q |
| 6 | 2 | 6 | Mona McSharry | Ireland | 30.57 | Q |
| 8 | 2 | 3 | Ida Hulkko | Finland | 30.69 | Q |
| 9 | 1 | 6 | Sophie Hansson | Sweden | 30.71 | |
| 10 | 2 | 7 | Dominika Sztandera | Poland | 30.78 | |
| 11 | 2 | 1 | Yang Chang | China | 30.86 | |
| 12 | 2 | 2 | Sophie Angus | Canada | 30.87 | |
| 13 | 1 | 7 | Anita Bottazzo | Italy | 30.89 | |
| 14 | 1 | 8 | Ana Rodrigues | Portugal | 31.09 | |
| 15 | 1 | 2 | Silje Slyngstadli | Norway | 31.34 | |
| 16 | 1 | 1 | Fleur Vermeiren | Belgium | 31.60 | |

### Final

The final was held on 18 February at 19:09.
| Rank | Lane | Name | Nationality | Time | Notes |
| | 4 | Rūta Meilutytė | Lithuania | 29.40 | |
| | 5 | Tang Qianting | China | 29.51 | AS |
| | 3 | Benedetta Pilato | Italy | 30.01 | |
| 4 | 2 | Lara van Niekerk | South Africa | 30.47 | |
| 5 | 7 | Ida Hulkko | Finland | 30.60 | |
| 6 | 6 | Piper Enge | United States | 30.69 | |
| 7 | 8 | Veera Kivirinta | Finland | 30.73 | |
| 8 | 1 | Mona McSharry | Ireland | 30.96 | |