Swimming at the 2013 SEA Games – Men's 100 metre butterfly

The Men's 100 metre butterfly event at the 2013 SEA Games took place on 14 December 2013 at Wunna Theikdi Aquatics Centre.

There were 15 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.

Schedule
All times are Myanmar Standard Time (UTC+06:30)