# Swimming at the 2018 European Aquatics Championships – Women's 100 metre butterfly

The Women's 100 metre butterfly competition of the 2018 European Aquatics Championships was held on 3 and 4 August 2018.

## 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 | 55.48 | Rio de Janeiro | 7 August 2016 |
| Championship record | Sarah Sjöström | Sweden | 55.89 | London | 20 May 2016 |

## Results
### Heats

The heats were started on 3 August at 10:36.
| Rank | Heat | Lane | Name | Nationality | Time | Notes |
| 1 | 4 | 4 | Sarah Sjöström | Sweden | 56.87 | Q |
| 2 | 2 | 4 | Elena Di Liddo | Italy | 57.91 | Q |
| 3 | 3 | 5 | Ilaria Bianchi | Italy | 57.92 | Q |
| 4 | 2 | 3 | Kimberly Buys | Belgium | 58.23 | Q |
| 5 | 3 | 4 | Svetlana Chimrova | Russia | 58.24 | Q |
| 6 | 4 | 5 | Marie Wattel | France | 58.47 | Q |
| 7 | 3 | 6 | Louise Hansson | Sweden | 58.52 | Q |
| 8 | 2 | 6 | Anna Ntountounaki | Greece | 58.65 | Q |
| 9 | 3 | 7 | Emilie Beckmann | Denmark | 58.69 | Q |
| 10 | 4 | 3 | Aliena Schmidtke | Germany | 58.89 | Q |
| 11 | 4 | 6 | Alys Thomas | Great Britain | 58.93 | Q |
| 12 | 2 | 5 | Liliána Szilágyi | Hungary | 58.95 | Q |
| 13 | 4 | 7 | Kinge Zandringa | Netherlands | 59.00 | Q |
| 14 | 3 | 2 | Claudia Tarzia | Italy | 59.54 | |
| 15 | 2 | 8 | Ana Catarina Monteiro | Portugal | 59.63 | Q |
| 16 | 4 | 0 | Amina Kajtaz | Bosnia and Herzegovina | 59.65 | Q |
| 17 | 3 | 3 | Charlotte Atkinson | Great Britain | 59.66 | Q |
| 18 | 2 | 1 | Evelyn Verrasztó | Hungary | 59.94 | |
| 19 | 2 | 7 | Amit Ivry | Israel | 1:00.00 | |
| 20 | 4 | 2 | Emily Large | Great Britain | 1:00.01 | |
| 21 | 3 | 1 | Lucie Svěcená | Czech Republic | 1:00.02 | |
| 22 | 3 | 8 | Emilie Løvberg | Norway | 1:00.06 | |
| 23 | 4 | 8 | Svenja Stoffel | Switzerland | 1:00.46 | |
| 24 | 1 | 5 | Nida Eliz Üstündağ | Turkey | 1:00.61 | |
| 25 | 2 | 2 | Sara Junevik | Sweden | 1:00.63 | |
| 26 | 1 | 4 | Zehra Duru Bilgin | Turkey | 1:00.65 | |
| 27 | 1 | 7 | Dalma Sebestyén | Hungary | 1:00.80 | |
| 28 | 4 | 1 | Polina Egorova | Russia | 1:00.90 | |
| 29 | 3 | 9 | Anastasiya Kuliashova | Belarus | 1:01.56 | |
| 30 | 1 | 3 | İmge Erdemli | Turkey | 1:02.12 | |
| 31 | 1 | 2 | Margaret Markvardt | Estonia | 1:02.15 | |
| 32 | 2 | 9 | Claudia Hufnagl | Austria | 1:02.36 | |
| 33 | 2 | 0 | Aleyna Özkan | Turkey | 1:02.82 | |
| 34 | 1 | 6 | Gerda Pak | Estonia | 1:03.27 | |
| 35 | 1 | 0 | Leoni Richter | Switzerland | 1:03.47 | |
| 36 | 4 | 9 | Alexandra Schegoleva | Cyprus | 1:03.53 | |
| 37 | 1 | 8 | Beatrice Felici | San Marino | 1:07.42 | |
| — | 1 | 9 | Alsu Bayramova | Azerbaijan | Did not start | Did not start |

### Semifinals

The semifinals were held on 3 August at 17:32.

#### Semifinal 1

| Rank | Lane | Name | Nationality | Time | Notes |
| 1 | 4 | Elena Di Liddo | Italy | 57.82 | Q |
| 2 | 6 | Anna Ntountounaki | Greece | 58.34 | Q |
| 3 | 2 | Aliena Schmidtke | Germany | 58.42 | Q |
| 4 | 3 | Marie Wattel | France | 58.52 | |
| 5 | 7 | Liliána Szilágyi | Hungary | 58.53 | |
| 6 | 5 | Kimberly Buys | Belgium | 58.99 | |
| 7 | 8 | Charlotte Atkinson | Great Britain | 59.36 | |
| 8 | 1 | Ana Catarina Monteiro | Portugal | 59.44 | |

#### Semifinal 2

| Rank | Lane | Name | Nationality | Time | Notes |
| 1 | 4 | Sarah Sjöström | Sweden | 56.66 | Q |
| 2 | 3 | Svetlana Chimrova | Russia | 57.54 | Q |
| 3 | 5 | Ilaria Bianchi | Italy | 57.79 | Q |
| 4 | 6 | Louise Hansson | Sweden | 57.99 | Q |
| 5 | 2 | Emilie Beckmann | Denmark | 58.40 | Q |
| 6 | 7 | Alys Thomas | Great Britain | 58.44 | |
| 7 | 1 | Kinge Zandringa | Netherlands | 58.64 | |
| 8 | 8 | Amina Kajtaz | Bosnia and Herzegovina | 59.54 | NR |

### Final

The final was held on 4 August at 17:18.
| Rank | Lane | Name | Nationality | Time | Notes |
| | 4 | Sarah Sjöström | Sweden | 56.23 | |
| | 5 | Svetlana Chimrova | Russia | 57.40 | |
| | 6 | Elena Di Liddo | Italy | 57.68 | |
| 4 | 3 | Ilaria Bianchi | Italy | 57.72 | |
| 5 | 7 | Anna Ntountounaki | Greece | 57.77 | NR |
| 6 | 2 | Louise Hansson | Sweden | 57.99 | |
| 7 | 1 | Emilie Beckmann | Denmark | 58.45 | |
| 8 | 8 | Aliena Schmidtke | Germany | 58.90 | |