# Swimming at the 2024 European Aquatics Championships – Women's 100 metre backstroke

The Women's 100 metre backstroke competition of the 2024 European Aquatics Championships was held on 21 and 22 June 2024.

## Records

Prior to the competition, the existing world, European and championship records were as follows.
| | Name | Nationality | Time | Location | Date |
| World record | Regan Smith | United States | 57.13 | Indianapolis | 18 June 2024 |
| European record | Kathleen Dawson | United Kingdom | 58.08 | Budapest | 23 May 2021 |
| Championship record | Kathleen Dawson | United Kingdom | 58.08 | Budapest | 23 May 2021 |

## Results
### Heats

The heats were started on 21 June at 09:51. Qualification Rules: The 16 fastest from the heats qualify to the semifinals.
| Rank | Heat | Lane | Name | Nationality | Time | Notes |
| 1 | 3 | 4 | Danielle Hill | Ireland | 1:00.62 | Q |
| 2 | 3 | 5 | Hanna Rosvall | Sweden | 1:00.88 | Q |
| 3 | 1 | 4 | Roos Vanotterdijk | Belgium | 1:01.06 | Q |
| 4 | 2 | 4 | Adela Piskorska | Poland | 1:01.16 | Q |
| 5 | 1 | 2 | Nika Sharafutdinova | Ukraine | 1:01.63 | Q |
| 6 | 2 | 3 | Lora Komoróczy | Hungary | 1:01.77 | Q |
| 7 | 2 | 2 | Justine Murdock | Lithuania | 1:01.98 | Q |
| 8 | 2 | 1 | Fanny Teijonsalo | Finland | 1:01.99 | Q |
| 9 | 3 | 3 | Dóra Molnár | Hungary | 1:02.03 | Q |
| 10 | 1 | 5 | Lottie Cullen | Ireland | 1:02.54 | Q |
| 11 | 3 | 7 | Holly McGill | Ireland | 1:02.62 | Q |
| 12 | 2 | 0 | Katarina Milutinović | Serbia | 1:02.71 | Q |
| 13 | 1 | 1 | Tom Mienis | Israel | 1:03.02 | Q |
| 14 | 2 | 7 | Laura Bernat | Poland | 1:03.15 | Q |
| 15 | 2 | 8 | Tatiana Salcuțan | Moldova | 1:03.19 | Q |
| 16 | 2 | 6 | Gabriela Georgieva | Bulgaria | 1:03.31 | Q |
| 17 | 3 | 8 | Iris Julia Berger | Austria | 1:03.37 | |
| 18 | 1 | 7 | Karoline Sørensen | Denmark | 1:03.58 | |
| 19 | 1 | 8 | Lena Grabowski | Austria | 1:05.62 | |
| 20 | 2 | 9 | Mia Krstevska | North Macedonia | 1:06.58 | |
| 21 | 1 | 0 | Elisabeth Erlendsdóttir | Faroe Islands | 1:06.59 | |
| 22 | 3 | 9 | Diana Musayelyan | Armenia | 1:09.54 | |
| | 1 | 3 | Schastine Tabor | Denmark | Did not start | Did not start |
| | 1 | 6 | Katalin Burián | Hungary | Did not start | Did not start |
| | 2 | 5 | Paulina Peda | Poland | Did not start | Did not start |
| | 3 | 0 | Jana Marković | Serbia | Did not start | Did not start |
| | 3 | 1 | Janja Šegel | Slovenia | Did not start | Did not start |
| | 3 | 2 | Aviv Barzelay | Israel | Did not start | Did not start |
| | 3 | 6 | Ayla Spitz | Israel | Did not start | Did not start |

### Semifinals

The semifinal were started on 21 June at 18:50. Qualification Rules: The first 2 competitors of each semifinal and the remaining fastest (up to a total of 8 qualified competitors) from the semifinals advance to the final.
| Rank | Heat | Lane | Name | Nationality | Time | Notes |
| 1 | 2 | 5 | Roos Vanotterdijk | Belgium | 1:00.42 | Q |
| 2 | 2 | 4 | Danielle Hill | Ireland | 1:00.52 | Q |
| 3 | 1 | 5 | Adela Piskorska | Poland | 1:00.71 | Q |
| 4 | 1 | 2 | Lottie Cullen | Ireland | 1:01.19 | Q |
| 5 | 2 | 3 | Nika Sharafutdinova | Ukraine | 1:01.20 | Q |
| 6 | 1 | 4 | Hanna Rosvall | Sweden | 1:01.22 | Q |
| 7 | 2 | 2 | Dóra Molnár | Hungary | 1:01.39 | Q |
| 8 | 1 | 3 | Lora Komoróczy | Hungary | 1:01.51 | Q |
| 9 | 2 | 6 | Justine Murdock | Lithuania | 1:01.59 | |
| 10 | 1 | 6 | Fanny Teijonsalo | Finland | 1:01.82 | |
| 11 | 2 | 7 | Holly McGill | Great Britain | 1:01.95 | |
| 12 | 2 | 1 | Tom Mienis | Israel | 1:02.96 | |
| 13 | 1 | 8 | Gabriela Georgieva | Bulgaria | 1:03.05 | |
| 14 | 2 | 8 | Tatiana Salcuțan | Moldova | 1:03.27 | |
| 15 | 1 | 7 | Katarina Milutinović | Serbia | 1:03.55 | |
| 16 | 1 | 1 | Laura Bernat | Poland | 1:03.57 | |

### Final

The final was held on 22 June at 20:07.
| Rank | Lane | Name | Nationality | Time |
| | 3 | Adela Piskorska | Poland | 59.79 |
| | 5 | Danielle Hill | Ireland | 1:00.19 |
| | 4 | Roos Vanotterdijk | Belgium | 1:00.58 |
| 4 | 2 | Nika Sharafutdinova | Ukraine | 1:00.91 |
| 5 | 6 | Lottie Cullen | Ireland | 1:01.03 |
| 6 | 8 | Lora Komoróczy | Hungary | 1:01.36 |
| 7 | 7 | Hanna Rosvall | Sweden | 1:01.39 |
| 8 | 1 | Dóra Molnár | Hungary | 1:01.46 |