# Swimming at the 2020 European Aquatics Championships – Women's 50 metre butterfly

The Women's 50 metre butterfly competition of the 2020 European Aquatics Championships was held on 22 and 23 May 2021.

## Records

Prior to the competition, the existing world and championship records were as follows.
| | Name | Nation | Time | Location | Date |
| World record European record | Sarah Sjöström | Sweden | 24.43 | Borås | 5 July 2014 |
| Championship record | Sarah Sjöström | Sweden | 24.87 | Berlin | 18 August 2014 |

## Results
### Heats

The heats were started on 22 May 2021 at 10:27.
| Rank | Heat | Lane | Name | Nationality | Time | Notes |
| 1 | 6 | 4 | Mélanie Henique | France | 25.30 | Q |
| 2 | 5 | 4 | Ranomi Kromowidjojo | Netherlands | 25.88 | Q |
| 3 | 4 | 5 | Jeanette Ottesen | Denmark | 25.91 | Q |
| 4 | 4 | 4 | Emilie Beckmann | Denmark | 25.96 | Q |
| 4 | 5 | 5 | Arina Surkova | Russia | 25.96 | Q |
| 6 | 5 | 1 | Sara Junevik | Sweden | 25.99 | Q |
| 7 | 4 | 3 | Maaike de Waard | Netherlands | 26.11 | Q |
| 8 | 5 | 3 | Louise Hansson | Sweden | 26.20 | Q |
| 9 | 6 | 6 | Elena Di Liddo | Italy | 26.28 | Q |
| 10 | 4 | 2 | Anastasiya Kuliashova | Belarus | 26.31 | Q |
| 11 | 5 | 6 | Kim Busch | Netherlands | 26.32 | |
| 12 | 6 | 5 | Marie Wattel | France | 26.35 | Q |
| 13 | 6 | 3 | Anastasiya Shkurdai | Belarus | 26.41 | Q |
| 14 | 6 | 2 | Anna Ntountounaki | Greece | 26.46 | Q |
| 15 | 6 | 1 | Silvia Di Pietro | Italy | 26.57 | Q, WD |
| 16 | 5 | 2 | Svetlana Chimrova | Russia | 26.59 | Q |
| 17 | 1 | 3 | Katarzyna Wasick | Poland | 26.61 | Q, WD |
| 18 | 3 | 5 | Harriet Jones | Great Britain | 26.63 | Q |
| 19 | 6 | 7 | Beatrix Bordás | Hungary | 26.65 | Q |
| 19 | 3 | 2 | Gabriela Ņikitina | Latvia | 26.65 | Q, NR |
| 21 | 4 | 6 | Michelle Coleman | Sweden | 26.68 | |
| 22 | 5 | 8 | Neža Klančar | Slovenia | 26.69 | |
| 22 | 3 | 3 | Dominika Varga | Hungary | 26.69 | |
| 24 | 5 | 9 | Mónika Ollé | Hungary | 26.70 | |
| 25 | 4 | 1 | Ida Liljeqvist | Sweden | 26.73 | |
| 26 | 6 | 8 | Ilaria Bianchi | Italy | 26.79 | |
| 27 | 4 | 0 | Costanza Cocconcelli | Italy | 26.90 | |
| 28 | 3 | 4 | Laura Stephens | Great Britain | 26.92 | |
| 29 | 4 | 7 | Kimberly Buys | Belgium | 26.93 | |
| 29 | 4 | 8 | Jessica Felsner | Germany | 26.93 | |
| 31 | 3 | 6 | Anna Kolářová | Czech Republic | 26.98 | |
| 32 | 5 | 7 | Sasha Touretski | Switzerland | 27.03 | |
| 33 | 3 | 0 | Tamara Potocká | Slovakia | 27.31 | |
| 34 | 4 | 9 | Tessa Giele | Netherlands | 27.41 | |
| 34 | 6 | 0 | Roos Vanotterdijk | Belgium | 27.41 | |
| 36 | 2 | 4 | Aina Hierro | Spain | 27.47 | |
| 37 | 3 | 1 | Julia Ullmann | Switzerland | 27.49 | |
| 38 | 2 | 1 | Mariam Sheikhalizadehkhanghah | Azerbaijan | 27.56 | NR |
| 38 | 3 | 7 | Alina Vedehhova | Estonia | 27.56 | |
| 40 | 3 | 9 | Alba Guillamón | Spain | 27.62 | |
| 41 | 2 | 7 | Zora Ripková | Slovakia | 27.78 | |
| 42 | 3 | 8 | Ieva Maļuka | Latvia | 27.87 | |
| 43 | 2 | 2 | Jóhanna Guðmundsdóttir | Iceland | 27.90 | |
| 44 | 2 | 0 | Martina Cibulková | Slovakia | 28.19 | |
| 45 | 2 | 5 | Viktoriya Kostromina | Ukraine | 28.28 | |
| 46 | 1 | 4 | Nida Eliz Üstündağ | Turkey | 28.35 | |
| 47 | 2 | 8 | Claudia Hufnagl | Austria | 28.63 | |
| 48 | 2 | 9 | Defne Taçyıldız | Turkey | 29.11 | |
| 49 | 1 | 5 | Nicola Muscat | Malta | 29.53 | |
| | 6 | 9 | Kornelia Fiedkiewicz | Poland | Did not start | Did not start |
| | 5 | 0 | Mimosa Jallow | Finland | Did not start | Did not start |
| | 2 | 3 | Fanny Teijonsalo | Finland | Did not start | Did not start |
| | 2 | 6 | Panna Ugrai | Hungary | Did not start | Did not start |

### Semifinals

The semifinals were started on 22 May at 18:40.

#### Semifinal 1

| Rank | Lane | Name | Nationality | Time | Notes |
| 1 | 4 | Ranomi Kromowidjojo | Netherlands | 25.71 | Q |
| 2 | 5 | Arina Surkova | Russia | 25.75 | Q |
| 3 | 3 | Sara Junevik | Sweden | 26.00 | q |
| 4 | 7 | Anastasiya Shkurdai | Belarus | 26.14 | |
| 5 | 6 | Louise Hansson | Sweden | 26.15 | |
| 6 | 2 | Anastasiya Kuliashova | Belarus | 26.27 | |
| 7 | 8 | Harriet Jones | Great Britain | 26.49 | |
| 8 | 1 | Svetlana Chimrova | Russia | 26.58 | |

#### Semifinal 2

| Rank | Lane | Name | Nationality | Time | Notes |
| 1 | 4 | Mélanie Henique | France | 25.53 | Q |
| 2 | 3 | Emilie Beckmann | Denmark | 25.64 | Q |
| 3 | 6 | Maaike de Waard | Netherlands | 25.81 | q |
| 3 | 5 | Jeanette Ottesen | Denmark | 25.81 | q |
| 5 | 1 | Anna Ntountounaki | Greece | 25.93 | q, NR |
| 6 | 7 | Marie Wattel | France | 26.07 | |
| 7 | 2 | Elena Di Liddo | Italy | 26.23 | |
| 8 | 8 | Beatrix Bordás | Hungary | 26.69 | |
| 9 | 9 | Gabriela Ņikitina | Latvia | 26.88 | |

### Final

The final was held on 23 May at 18:00.
| Rank | Lane | Name | Nationality | Time | Notes |
| | 3 | Ranomi Kromowidjojo | Netherlands | 25.30 | |
| | 4 | Mélanie Henique | France | 25.46 | |
| | 5 | Emilie Beckmann | Denmark | 25.59 | |
| 4 | 1 | Anna Ntountounaki | Greece | 25.65 | NR |
| 5 | 2 | Maaike de Waard | Netherlands | 25.76 | |
| 6 | 8 | Sara Junevik | Sweden | 25.84 | |
| 7 | 7 | Jeanette Ottesen | Denmark | 25.85 | |
| 8 | 6 | Arina Surkova | Russia | 25.87 | |