| Event: | Women's 100 metre butterfly |
| Competition: | 2022 FINA World Swimming Championships (25 m) |
| Venue: | Melbourne Sports and Aquatic Centre |
| Location: | Melbourne, Australia |
| Dates: | 17 December (heats and semifinals) 18 December (final) |
| Competitors: | 29 |
| Nations: | 25 |
| Win Value: | 54.05 |
| Gold: | Maggie Mac Neil |
| Goldnoc: | CAN |
| Silver: | Torri Huske |
| Silvernoc: | USA |
| Bronze: | Louise Hansson |
| Bronzenoc: | SWE |
| Prev: | 2021 |
| Next: | 2024 |
The Women's 100 metre butterfly competition of the 2022 FINA World Swimming Championships (25 m) was held on 17 and 18 December 2022.[1]
Prior to the competition, the existing world and championship records were as follows.
The following new records were set during this competition:
The heats were started on 17 December at 12:05.[2]
| Rank | Heat | Lane | Name | Nationality | Time | Notes |
|---|---|---|---|---|---|---|
| 1 | 3 | 4 | 55.74 | Q | ||
| 2 | 3 | 5 | 56.01 | Q | ||
| 3 | 3 | 6 | 56.46 | Q | ||
| 4 | 4 | 4 | 56.53 | Q | ||
| 5 | 2 | 7 | 56.56 | Q | ||
| 6 | 2 | 6 | 56.67 | Q | ||
| 7 | 3 | 3 | 56.72 | Q | ||
| 8 | 4 | 7 | 56.86 | Q | ||
| 9 | 2 | 5 | 56.89 | Q | ||
| 10 | 2 | 4 | 56.90 | Q | ||
| 11 | 3 | 7 | 57.15 | Q | ||
| 12 | 2 | 3 | 57.22 | Q | ||
| 13 | 2 | 1 | 57.26 | Q, NR | ||
| 14 | 4 | 6 | 57.50 | Q | ||
| 15 | 4 | 2 | 57.51 | Q | ||
| 16 | 2 | 2 | 57.85 | |||
| 16 | 3 | 2 | 57.85 | |||
| 18 | 3 | 1 | 57.88 | NR | ||
| 19 | 4 | 1 | 58.04 | |||
| 20 | 3 | 8 | 58.06 | |||
| 21 | 2 | 8 | 58.65 | |||
| 22 | 4 | 8 | 58.93 | |||
| 23 | 1 | 6 | 59.39 | |||
| 24 | 1 | 4 | 59.78 | NR | ||
| 25 | 1 | 5 | ||||
| 26 | 1 | 7 | NR | |||
| 27 | 1 | 3 | NR | |||
| 28 | 1 | 2 | Suspended Member Federation | |||
| 29 | 1 | 1 | ||||
| 4 | 3 | |||||
| 4 | 5 |
The swim-off was held on 17 December at 13:33.[3]
| Rank | Lane | Name | Nationality | Time | Notes | |
|---|---|---|---|---|---|---|
| 1 | 5 | 56.88 | Q, NR | |||
| 2 | 4 | 57.76 |
The semifinals were started on 17 December at 21:07.[4]
| Rank | Heat | Lane | Name | Nationality | Time | Notes | |
|---|---|---|---|---|---|---|---|
| 1 | 1 | 4 | 55.23 | Q | |||
| 2 | 2 | 4 | 55.78 | Q | |||
| 3 | 1 | 5 | 55.83 | Q | |||
| 4 | 2 | 3 | 56.23 | Q, NR | |||
| 5 | 1 | 2 | 56.37 | Q, | |||
| 6 | 2 | 5 | 56.39 | Q | |||
| 7 | 1 | 3 | 56.40 | Q | |||
| 8 | 1 | 6 | 56.44 | Q | |||
| 9 | 2 | 6 | 56.51 | Q | |||
| 10 | 2 | 2 | 56.71 | ||||
| 11 | 2 | 1 | 57.07 | NR | |||
| 12 | 1 | 2 | 57.13 | ||||
| 13 | 2 | 7 | 57.21 | ||||
| 14 | 2 | 8 | 57.23 | ||||
| 15 | 1 | 7 | 57.25 | ||||
| 16 | 1 | 8 | 58.09 |
The final was held on 18 December at 19:35.[5]
| Rank | Lane | Nation | Swimmers | Time | Notes | |
|---|---|---|---|---|---|---|
| 3 | 54.05 | |||||
| 4 | 54.75 | |||||
| 5 | 54.87 | |||||
| 4 | 6 | 56.20 | NR | |||
| 5 | 8 | 56.27 | ||||
| 6 | 2 | 56.34 | ||||
| 7 | 7 | 56.52 | ||||
| 8 | 1 | 56.87 |