| Swimming at the 2013 SEA Games | ||
|---|---|---|
| | ||
| Freestyle | ||
| 50 m | men | women |
| 100 m | men | women |
| 200 m | men | women |
| 400 m | men | women |
| 800 m | women | |
| 1500 m | men | |
| Backstroke | ||
| 100 m | men | women |
| 200 m | men | women |
| Breaststroke | ||
| 100 m | men | women |
| 200 m | men | women |
| Butterfly | ||
| 100 m | men | women |
| 200 m | men | women |
| Individual medley | ||
| 200 m | men | women |
| 400 m | men | women |
| Freestyle relay | ||
| 4×100 m | men | women |
| 4×200 m | men | women |
| Medley relay | ||
| 4×100 m | men | women |
The Women's 100 metre butterfly event at the 2013 SEA Games took place on 14 December 2013 at Wunna Theikdi Aquatics Centre.
There were 13 competitors from 8 countries who took part in this event. Two heats were held. The heat in which a swimmer competed did not formally matter for advancement, as the swimmers with the top eight times from both field qualified for the finals.
All times are Myanmar Standard Time (UTC+06:30)
| Date | Time | Event |
|---|---|---|
| Thursday, 14 December 2013 | 09:17 | Heats |
| 18:27 | Final |
Prior to this competition, the existing world, Asian, and Southeast Asian Games records were as follows.
| World Record | 55.98 | London, United Kingdom | 29 July 2012 | |
| Asian Record | 56.07 | Jinan, China | 11 September 2009 | |
| Games Record | 58.84 | Palembang, Indonesia | 12 November 2011 |
| Rank | Heat | Lane | Athlete | Time | Notes |
|---|---|---|---|---|---|
| 1 | 1 | 3 | 1:02.36 | ||
| 2 | 1 | 4 | 1:02.41 | Q | |
| 3 | 2 | 4 | 1:02.90 | Q | |
| 4 | 2 | 5 | 1:03.38 | Q | |
| 5 | 1 | 5 | 1:03.40 | Q | |
| 6 | 2 | 3 | 1:03.47 | Q | |
| 7 | 2 | 6 | 1:03.48 | Q | |
| 8 | 1 | 2 | 1:03.68 | Q | |
| 9 | 2 | 2 | 1:04.31 | Q | |
| 10 | 1 | 6 | 1:05.76 | ||
| 11 | 2 | 7 | 1:07.13 | ||
| 12 | 1 | 7 | 1:13.87 | ||
| 13 | 2 | 1 | 1:19.51 |
| Rank | Lane | Athlete | Time | Notes |
|---|---|---|---|---|
| 5 | 59.87 | |||
| 4 | 1:00.34 | |||
| 6 | 1:01.76 | |||
| 4 | 7 | 1:01.97 | ||
| 5 | 2 | 1:02.07 | ||
| 6 | 3 | 1:03.15 | ||
| 7 | 1 | 1:03.84 | ||
| 7 | 8 | 1:03.84 |