# Swimming at the 2019 World Aquatics Championships – Women's 50 metre backstroke

The Women's 50 metre backstroke competition at the 2019 World Championships was held on 24 and 25 July 2019.

## 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 held on 24 July at 10:03.
| Rank | Heat | Lane | Name | Nationality | Time | Notes |
| 1 | 5 | 4 | Fu Yuanhui | China | 27.70 | Q |
| 2 | 5 | 5 | Etiene Medeiros | Brazil | 27.85 | Q |
| 3 | 5 | 7 | Kira Toussaint | Netherlands | 27.86 | Q |
| 4 | 4 | 4 | Georgia Davies | Great Britain | 27.92 | Q |
| 5 | 5 | 8 | Julie Kepp Jensen | Denmark | 27.95 | Q |
| 6 | 3 | 5 | Olivia Smoliga | United States | 27.96 | Q |
| 7 | 5 | 1 | Simona Kubová | Czech Republic | 28.00 | Q |
| 8 | 3 | 4 | Anastasia Fesikova | Russia | 28.02 | Q |
| 9 | 4 | 5 | Mimosa Jallow | Finland | 28.04 | Q |
| 10 | 3 | 3 | Alicja Tchórz | Poland | 28.14 | Q |
| 11 | 4 | 6 | Kathleen Baker | United States | 28.17 | Q |
| 12 | 3 | 6 | Maaike de Waard | Netherlands | 28.19 | Q |
| 12 | 5 | 3 | Chen Jie | China | 28.19 | Q |
| 14 | 4 | 3 | Kaylee McKeown | Australia | 28.23 | Q |
| 15 | 5 | 2 | Caroline Pilhatsch | Austria | 28.28 | Q |
| 16 | 5 | 6 | Daria Vaskina | Russia | 28.29 | Q |
| 17 | 4 | 2 | Silvia Scalia | Italy | 28.30 | |
| 18 | 3 | 7 | Stephanie Au | Hong Kong | 28.31 | |
| 19 | 4 | 1 | Minna Atherton | Australia | 28.32 | |
| 20 | 3 | 2 | Natsumi Sakai | Japan | 28.41 | |
| 21 | 3 | 1 | Theodora Drakou | Greece | 28.48 | |
| 22 | 3 | 8 | Im Da-sol | South Korea | 28.50 | |
| 23 | 5 | 0 | Ingeborg Løyning | Norway | 28.67 | |
| 24 | 3 | 0 | Katalin Burián | Hungary | 28.84 | |
| 25 | 4 | 0 | Karolina Hájková | Slovakia | 29.04 | |
| 26 | 3 | 9 | Louise Hansson | Sweden | 29.12 | |
| 27 | 4 | 9 | Diana Nazarova | Kazakhstan | 29.51 | |
| 28 | 5 | 9 | Ekaterina Avramova | Turkey | 29.61 | |
| 29 | 2 | 4 | Eygló Ósk Gústafsdóttir | Iceland | 29.82 | |
| 30 | 2 | 6 | Marie Khoury | Lebanon | 30.39 | NR |
| 31 | 2 | 3 | Mónica Ramírez | Andorra | 30.53 | |
| 32 | 1 | 9 | Nimia Murua | Panama | 30.77 | |
| 33 | 2 | 5 | Maria Arrua | Paraguay | 30.86 | |
| 34 | 2 | 7 | Xiomara Getrouw | Suriname | 31.42 | |
| 35 | 1 | 1 | Sophia Diagne | Senegal | 31.98 | |
| 36 | 2 | 2 | Kimberly Ince | Grenada | 32.27 | |
| 37 | 2 | 8 | Cheang Weng Lam | Macau | 33.01 | |
| 38 | 2 | 0 | Colleen Furgeson | Marshall Islands | 33.28 | |
| 39 | 2 | 1 | Robyn Young | Eswatini | 33.54 | |
| 40 | 1 | 8 | Nooran Ba-Matraf | Yemen | 33.99 | |
| 41 | 1 | 2 | Jennifer Harding-Marlin | Saint Kitts and Nevis | 34.08 | |
| 42 | 1 | 7 | Aika Watanabe | Northern Mariana Islands | 35.04 | |
| 43 | 2 | 9 | Noelani Day | Tonga | 35.17 | |
| 44 | 1 | 4 | Aishath Sausan | Maldives | 35.41 | NR |
| 45 | 1 | 6 | Nafissath Radji | Benin | 36.01 | |
| 46 | 1 | 0 | Ekaterina Bordachyova | Tajikistan | 37.95 | |
| 47 | 1 | 3 | Tayamika Chang'anamuno | Malawi | 38.49 | |
| 48 | 1 | 5 | Shivani Bhatt | Tanzania | 38.96 | |
| | 4 | 7 | Mie Nielsen | Denmark | DNS | DNS |
| | 4 | 8 | Alexandra Touretski | Switzerland | DNS | DNS |

### Semifinals

The semifinals were held on 24 July at 20:37.

#### Semifinal 1

| Rank | Lane | Name | Nationality | Time | Notes |
| 1 | 4 | Etiene Medeiros | Brazil | 27.69 | Q |
| 2 | 5 | Georgia Davies | Great Britain | 27.72 | Q |
| 3 | 1 | Kaylee McKeown | Australia | 27.73 | Q |
| 4 | 3 | Olivia Smoliga | United States | 27.76 | Q |
| 5 | 8 | Daria Vaskina | Russia | 27.79 | Q |
| 6 | 6 | Anastasia Fesikova | Russia | 28.01 | |
| 7 | 7 | Maaike de Waard | Netherlands | 28.04 | |
| 8 | 2 | Alicja Tchórz | Poland | 28.18 | |

#### Semifinal 2

| Rank | Lane | Name | Nationality | Time | Notes |
| 1 | 7 | Kathleen Baker | United States | 27.62 | Q |
| 2 | 8 | Caroline Pilhatsch | Austria | 27.77 | Q, NR |
| 3 | 5 | Kira Toussaint | Netherlands | 27.78 | Q |
| 4 | 4 | Fu Yuanhui | China | 27.84 | |
| 5 | 6 | Simona Kubová | Czech Republic | 27.91 | |
| 6 | 1 | Chen Jie | China | 28.07 | |
| 7 | 2 | Mimosa Jallow | Finland | 28.10 | |
| 8 | 3 | Julie Kepp Jensen | Denmark | 28.24 | |

### Final

The final was held on 25 July at 20:37.
| Rank | Lane | Name | Nationality | Time | Notes |
| | 2 | Olivia Smoliga | United States | 27.33 | NR |
| | 5 | Etiene Medeiros | Brazil | 27.44 | |
| | 8 | Daria Vaskina | Russia | 27.51 | |
| 4 | 3 | Georgia Davies | Great Britain | 27.65 | |
| 4 | 6 | Kaylee McKeown | Australia | 27.65 | |
| 6 | 4 | Kathleen Baker | United States | 27.69 | |
| 7 | 7 | Caroline Pilhatsch | Austria | 27.78 | |
| 8 | 1 | Kira Toussaint | Netherlands | 27.85 | |