| Women's 50 metre butterfly at the 2025 SEA Games | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Venue | SAT Swimming Pool | |||||||||
| Date | 15 December | |||||||||
| Competitors | 13 from 8 nations | |||||||||
| Winning time | 26.42 | |||||||||
| Medalists | ||||||||||
| ||||||||||
The women's 50 metre butterfly event at the 2025 SEA Games took place on 15 December 2025 at the SAT Swimming Pool in Bangkok, Thailand.
All times are Indochina Standard Time (UTC+07:00)
| Date | Time | Event |
|---|---|---|
| Monday, 15 December 2025 | 9:09 | Heats |
| 18:00 | Final |
Prior to this competition, the existing world, Asian, and Southeast Asian Games records were as follows.
| World Record |  Sarah Sjöström (SWE) | 24.43 | Borås, Sweden | 5 July 2014 |
| Asian Record |  Zhang Yufei (CHN) | 25.05 | Fukuoka, Japan | 29 July 2023 |
| Games Record |  Quah Ting Wen (SGP) | 26.50 | Capas, Philippines | 7 December 2019 |
| Rank | Heat | Lane | Swimmer | Nationality | Time | Notes |
|---|---|---|---|---|---|---|
| 1 | 2 | 4 | Quah Ting Wen | Singapore | 26.90 | Q |
| 2 | 1 | 4 | Quah Jing Wen | Singapore | 27.23 | Q |
| 3 | 1 | 5 | Miranda Cristina Renner |  Philippines | 27.29 | Q |
| 4 | 1 | 2 | Lim Shun Qi |  Malaysia | 28.10 | Q |
| 5 | 1 | 3 | Phạm Thị Vân |  Vietnam | 28.24 | Q |
| 6 | 2 | 7 | Nadia Aisha Nurazmi |  Indonesia | 28.64 | Q |
| 7 | 1 | 6 | Adelia Chantika Aulia | Indonesia | 28.75 | Q |
| 8 | 2 | 5 | Jenjira Srisa-Ard |  Thailand | 28.89 | Q |
| 9 | 1 | 7 | Oo Nan Honey |  Myanmar | 29.34 | R |
| 10 | 2 | 6 | Nguyễn Thúy Hiền | Vietnam | 30.66 | R |
| 11 | 1 | 1 | Thakhin Aung Phyo Thet | Myanmar | 33.50 | |
| 12 | 1 | 8 | Tamsiri Christine Niyomxay |  Laos | 35.02 | |
| 13 | 2 | 1 | Thipthida Chantha | Laos | 35.10 | |
| – | 2 | 2 | Kamonluck Tungnapakorn | Thailand | DNS |
| Rank | Lane | Swimmer | Nationality | Time | Notes |
|---|---|---|---|---|---|
 | 4 | Quah Ting Wen | Singapore | 26.42 | GR |
 | 3 | Miranda Cristina Renner | Philippines | 26.93 | NR |
 | 1 | Jenjira Srisa-Ard | Thailand | 26.96 | |
| 4 | 5 | Quah Jing Wen | Singapore | 27.00 | |
| 5 | 2 | Phạm Thị Vân | Vietnam | 27.18 | NR |
| 6 | 6 | Lim Shun Qi | Malaysia | 28.19 | |
| 7 | 7 | Nadia Aisha Nurazmi | Indonesia | 28.21 | |
| 8 | 8 | Oo Nan Honey | Myanmar | 29.05 | NR |