# 2021 FINA World Swimming Championships (25 m) – Women's 50 metre breaststroke

The Women's 50 metre breaststroke competition of the 2021 FINA World Swimming Championships (25 m) was held on 16 and 17 December 2021.

## Records

Prior to the competition, the existing world and championship records were as follows.
| World record | Alia Atkinson (JAM) | 28.56 | Budapest, Hungary | 6 October 2018 |
| Competition record | Rūta Meilutytė (LTU) | 28.81 | Doha, Qatar | 3 December 2014 |

## Results
### Heats

The heats were started on 16 December at 10:41.
| Rank | Heat | Lane | Name | Nationality | Time | Notes |
| 1 | 7 | 4 | Alia Atkinson | Jamaica | 29.55 | Q |
| 2 | 7 | 3 | Sophie Hansson | Sweden | 29.57 | Q, NR |
| 3 | 8 | 4 | Benedetta Pilato | Italy | 29.73 | Q |
| 3 | 8 | 5 | Ida Hulkko | Finland | 29.73 | Q |
| 5 | 7 | 6 | Mona McSharry | Ireland | 29.90 | Q |
| 6 | 8 | 6 | Veera Kivirinta | Finland | 30.02 | Q |
| 7 | 7 | 5 | Anastasia Gorbenko | Israel | 30.08 | Q |
| 8 | 6 | 6 | Jhennifer Conceição | Brazil | 30.11 | Q |
| 9 | 7 | 2 | Lydia Jacoby | United States | 30.16 | Q |
| 9 | 8 | 8 | Fanny Lecluyse | Belgium | 30.16 | Q |
| 11 | 7 | 1 | Andrea Podmaníková | Slovakia | 30.17 | Q, NR |
| 11 | 8 | 3 | Alina Zmushka | Belarus | 30.17 | Q |
| 13 | 6 | 5 | Nika Godun | Russian Swimming Federation | 30.32 | Q |
| 14 | 8 | 2 | Klara Thormalm | Sweden | 30.39 | Q |
| 15 | 7 | 7 | Kotryna Teterevkova | Lithuania | 30.41 | Q |
| 16 | 6 | 3 | Florine Gaspard | Belgium | 30.45 | QSO |
| 16 | 6 | 7 | Molly Renshaw | Great Britain | 30.45 | QSO |
| 18 | 6 | 9 | Jenjira Srisaard | Thailand | 30.53 | NR |
| 19 | 6 | 8 | Jessica Vall | Spain | 30.56 | |
| 20 | 6 | 2 | Eneli Jefimova | Estonia | 30.61 | |
| 21 | 8 | 0 | Maria Drasidou | Greece | 30.67 | |
| 22 | 8 | 1 | Cornelia Pammer | Austria | 30.73 | |
| 23 | 8 | 7 | Lisa Mamié | Switzerland | 30.75 | |
| 24 | 6 | 1 | Kim Busch | Netherlands | 30.82 | |
| 25 | 5 | 6 | Diana Petkova | Bulgaria | 30.98 | NR |
| 26 | 7 | 8 | Evgeniia Chikunova | Russian Swimming Federation | 31.12 | |
| 27 | 5 | 3 | Lam Hoi Kiu | Hong Kong | 31.33 | |
| 28 | 5 | 1 | Lillian Higgs | Bahamas | 31.38 | NR |
| 28 | 5 | 8 | Eszter Békési | Hungary | 31.38 | |
| 30 | 6 | 0 | Back Su-yeon | South Korea | 31.39 | |
| 31 | 5 | 7 | Melissa Rodríguez | Mexico | 31.52 | NR |
| 32 | 5 | 4 | Justine Delmas | France | 31.65 | |
| 33 | 5 | 5 | Adelaida Pchelintseva | Kazakhstan | 31.73 | |
| 34 | 7 | 9 | Martina Barbeito | Argentina | 31.82 | |
| 35 | 5 | 0 | Houda El Baroudi | Morocco | 31.89 | |
| 36 | 4 | 4 | Emily Santos | Panama | 32.08 | NR |
| 37 | 5 | 9 | Marissa Lugo | Puerto Rico | 32.39 | NR |
| 38 | 4 | 6 | Alicia Kok Shun | Mauritius | 32.79 | NR |
| 39 | 4 | 1 | Elisa Funes | El Salvador | 32.93 | NR |
| 40 | 4 | 2 | Claudia Verdino | Monaco | 33.13 | |
| 41 | 4 | 5 | Kirabo Namutebi | Uganda | 33.35 | |
| 42 | 4 | 0 | Anaika Charles | Grenada | 33.95 | |
| 43 | 2 | 5 | Marina Abu Shamaleh | Palestine | 34.00 | NR |
| 44 | 4 | 8 | Mariam Mithqal | Jordan | 34.07 | NR |
| 45 | 4 | 7 | Naima Hazell | Saint Lucia | 34.11 | |
| 45 | 4 | 9 | Valentina Aloisio | Bolivia | 34.11 | |
| 47 | 2 | 3 | Ekaterina Smorkalova | Kyrgyzstan | 35.42 | |
| 48 | 3 | 5 | Taeyanna Adams | Federated States of Micronesia | 36.11 | |
| 49 | 3 | 3 | Upaasti Maharjan | Nepal | 37.13 | |
| 50 | 2 | 8 | Shoko Litulumar | Northern Mariana Islands | 39.91 | |
| 51 | 2 | 1 | Sophie Beth Taylor | Turks and Caicos Islands | 42.71 | |
| 52 | 3 | 6 | Brhane Amare | Ethiopia | 43.34 | |
| 53 | 3 | 1 | Kanu Isha | Sierra Leone | 45.35 | |
| 54 | 1 | 5 | Naima-Zahra Amison | Djibouti | 47.37 | |
| 55 | 2 | 6 | Sabrina Ikromova | Tajikistan | 49.61 | |
| 56 | 2 | 0 | Mariama Conte | Guinea | 50.47 | |
| 57 | 3 | 0 | Sira Sowe | Gambia | 54.64 | |
| | 1 | 4 | Claudette Ishimwe | Rwanda | DSQ | |
| | 3 | 4 | Lara Dashti | Kuwait | DSQ | |
| | 3 | 8 | Salima Ahmadou | Niger | DSQ | |
| | 5 | 2 | Nina Stanisavljević | Serbia | DSQ | |
| | 6 | 4 | Arianna Castiglioni | Italy | DSQ | |
| | 7 | 0 | Tang Qianting | China | DSQ | |
| | 8 | 9 | Tjaša Vozel | Slovenia | DSQ | |
| | 1 | 3 | Rita Acaba Ocomo | Equatorial Guinea | DNS | |
| | 2 | 2 | Grace Nguelo'o | Cameroon | DNS | |
| | 2 | 4 | Anaikah Thélémaque | Haiti | DNS | |
| | 2 | 7 | Eunike Mathayo | Tanzania | DNS | |
| | 3 | 2 | Aminata Sangafe | Mali | DNS | |
| | 3 | 7 | Fatoumata Tinta | Burkina Faso | DNS | |
| | 3 | 9 | Danitrias Omba | Democratic Republic of the Congo | DNS | |
| | 4 | 3 | Jayla Pina | Cape Verde | DNS | |

#### Swim-off

The swim-off was held on 16 December at 12:42.
| Rank | Lane | Name | Nationality | Time | Notes |
| 1 | 4 | Florine Gaspard | Belgium | 30.11 | Q |
| 2 | 5 | Molly Renshaw | Great Britain | 30.33 | |

### Semifinals

The semifinals were started on 16 December at 18:21.
| Rank | Heat | Lane | Name | Nationality | Time | Notes |
| 1 | 2 | 1 | Nika Godun | Russian Swimming Federation | 29.42 | Q |
| 2 | 1 | 5 | Ida Hulkko | Finland | 29.62 | Q |
| 3 | 2 | 3 | Mona McSharry | Ireland | 29.65 | Q, NR |
| 4 | 1 | 4 | Sophie Hansson | Sweden | 29.76 | Q |
| 4 | 2 | 5 | Benedetta Pilato | Italy | 29.76 | Q |
| 6 | 2 | 6 | Anastasia Gorbenko | Israel | 29.77 | Q |
| 7 | 1 | 2 | Fanny Lecluyse | Belgium | 29.85 | Q |
| 8 | 1 | 3 | Veera Kivirinta | Finland | 29.97 | Q |
| 9 | 1 | 6 | Jhennifer Conceição | Brazil | 30.03 | |
| 10 | 2 | 7 | Andrea Podmaníková | Slovakia | 30.08 | NR |
| 11 | 1 | 8 | Florine Gaspard | Belgium | 30.10 | |
| 12 | 2 | 8 | Kotryna Teterevkova | Lithuania | 30.19 | |
| 13 | 2 | 2 | Lydia Jacoby | United States | 30.21 | |
| 14 | 1 | 7 | Alina Zmushka | Belarus | 30.24 | |
| 15 | 1 | 1 | Klara Thormalm | Sweden | 30.33 | |
| | 2 | 4 | Alia Atkinson | Jamaica | DSQ | |

### Final

The final was held on 17 December at 18:42.
| Rank | Lane | Name | Nationality | Time | Notes |
| | 7 | Anastasia Gorbenko | Israel | 29.34 | NR |
| | 2 | Benedetta Pilato | Italy | 29.50 | |
| | 6 | Sophie Hansson | Sweden | 29.55 | NR |
| 4 | 3 | Mona McSharry | Ireland | 29.59 | NR |
| 5 | 4 | Nika Godun | Russian Swimming Federation | 29.79 | |
| 6 | 5 | Ida Hulkko | Finland | 29.88 | |
| 7 | 1 | Fanny Lecluyse | Belgium | 29.95 | |
| 8 | 8 | Veera Kivirinta | Finland | 30.07 | |