| Men's 50 metre butterfly at the 2025 SEA Games | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Venue | SAT Swimming Pool | |||||||||
| Date | 14 December | |||||||||
| Competitors | 12 from 9 nations | |||||||||
| Winning time | 23.24 | |||||||||
| Medalists | ||||||||||
| ||||||||||
The men's 50 metre butterfly event at the 2025 SEA Games will take place on 14 December 2025 at the SAT Swimming Pool in Bangkok, Thailand.
All times are Indochina Standard Time (UTC+07:00)
| Date | Time | Event |
|---|---|---|
| Sunday, 14 December 2025 | 9:10 | Heats |
| 18:10 | Final |
Prior to this competition, the existing world, Asian, and Southeast Asian Games records were as follows.
| World Record |  Andriy Govorov (UKR) | 22.27 | Rome, Italy | 1 July 2018 |
| Asian Record |  Joseph Schooling (SGP) | 22.93 | Budapest, Budapest | 23 July 2017 |
| Games Record | Teong Tzen Wei (SGP) | 23.04 | Hanoi, Vietnam | 15 May 2022 |
| Rank | Heat | Lane | Swimmer | Nationality | Time | Notes |
|---|---|---|---|---|---|---|
| 1 | 2 | 4 | Teong Tzen Wei | Singapore | 23.45 | Q |
| 2 | 2 | 3 | Joe Aditya Wijaya Kurniawan |  Indonesia | 24.06 | Q |
| 3 | 1 | 4 | Quah Zheng Wen | Singapore | 24.14 | Q |
| 4 | 1 | 5 | Luong Jérémie Loïc Nino |  Vietnam | 24.39 | Q |
| 5 | 1 | 3 | Logan Wataru Noguchi |  Philippines | 24.45 | Q |
| 6 | 2 | 5 | Bryan Leong Xin Ren |  Malaysia | 24.61 | Q |
| 7 | 1 | 6 | Geargchai Rutnosot |  Thailand | 24.93 | Q |
| 8 | 2 | 2 | Samuel Maxson Septionus | Indonesia | 25.00 | Q |
| 9 | 2 | 6 | Navaphat Wongcharoen | Thailand | 25.21 | R |
| 10 | 1 | 2 | Joran Paul Jamero Orogo | Philippines | 25.21 | R |
| 11 | 2 | 1 | Thu Lin Myat |  Myanmar | 26.89 | |
| 12 | 2 | 7 | Jirasak Khammavongkeo |  Laos | 28.05 |
| Rank | Lane | Swimmer | Nationality | Time | Notes |
|---|---|---|---|---|---|
 | 4 | Teong Tzen Wei | Singapore | 23.24 | |
 | 3 | Quah Zheng Wen | Singapore | 23.57 | |
 | 2 | Logan Wataru Noguchi | Philippines | 23.97 | |
| 4 | 5 | Joe Aditya Wijaya Kurniawan | Indonesia | 24.09 | |
| 5 | 6 | Luong Jérémie Loïc Nino | Vietnam | 24.16 | |
| 6 | 7 | Bryan Leong Xin Ren | Malaysia | 24.55 | |
| 7 | 1 | Geargchai Rutnosot | Thailand | 24.59 | |
| 8 | 8 | Samuel Maxson Septionus | Indonesia | 24.91 |