| Women's 50 metre backstroke at the 2025 SEA Games | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Venue | SAT Swimming Pool | |||||||||
| Date | 11 December | |||||||||
| Competitors | 14 from 7 nations | |||||||||
| Winning time | 28.80 | |||||||||
| Medalists | ||||||||||
| ||||||||||
The women's 50 metre backstroke event at the 2025 SEA Games took place on 11 December 2025 at the SAT Swimming Pool in Bangkok, Thailand.
All times are Indochina Standard Time (UTC+07:00)
| Date | Time | Event |
|---|---|---|
| Thursday, 11 December 2025 | 9:06 | Heats |
| 18:04 | Final |
Prior to this competition, the existing world, Asian and Games records were as follows.
| World Record |  Kaylee McKeown (AUS) | 26.86 | Budapest, Hungary | 20 October 2023 |
| Asian Record |  Liu Xiang (CHN) | 26.98 | Jakarta, Indonesia | 21 August 2018 |
| Games Record |  Masniari Wolf (INA) | 28.89 | Phnom Penh, Cambodia | 7 May 2023 |
| Rank | Heat | Lane | Swimmer | Nationality | Time | Notes |
|---|---|---|---|---|---|---|
| 1 | 2 | 4 | Kayla Sanchez |  Philippines | 28.47 | Q, GR , NR |
| 2 | 2 | 5 | Masniari Wolf | Indonesia | 29.20 | Q |
| 3 | 1 | 5 | Saovanee Boonamphai |  Thailand | 29.28 | Q |
| 4 | 2 | 3 | Quendy Fernandez | Philippines | 29.48 | Q |
| 5 | 1 | 4 | Flairene Candrea | Indonesia | 29.53 | Q |
| 6 | 1 | 6 | Levenia Sim |  Singapore | 29.54 | Q |
| 7 | 1 | 3 | Chong Xin Lin |  Malaysia | 29.61 | Q |
| 8 | 2 | 6 | Mia Millar | Thailand | 29.84 | Q |
| 9 | 2 | 2 | Vivian Tee Xin Ling | Malaysia | 30.22 | R |
| 10 | 1 | 2 | Julia Yeo Shu Ning | Singapore | 30.26 | R |
| 11 | 2 | 7 | Oo Nan Honey |  Myanmar | 30.88 | NR |
| 12 | 2 | 8 | Yan Htet Wun | Myanmar | 34.27 | |
| 13 | 1 | 7 | Tamsiri Christine Niyomxay |  Laos | 36.64 | |
| 14 | 2 | 1 | Thipthida Chantha | Laos | 37.89 |
| Rank | Lane | Swimmer | Nationality | Time | Notes |
|---|---|---|---|---|---|
 | 5 | Masniari Wolf | Indonesia | 28.80 | NR |
 | 4 | Kayla Sanchez | Philippines | 28.84 | |
 | 3 | Saovanee Boonamphai | Thailand | 28.84 | NR |
| 4 | 2 | Flairene Candrea | Indonesia | 28.98 | |
| 5 | 1 | Chong Xin Lin | Malaysia | 29.47 | |
| 6 | 6 | Quendy Fernandez | Philippines | 29.53 | |
| 7 | 7 | Levenia Sim | Singapore | 29.86 | |
| 8 | 8 | Mia Millar | Thailand | 29.93 |