Swimming at the 2013 Southeast Asian Games – Men's 100 metre backstroke

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

There were 11 competitors from 7 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)

Prior to this competition, the existing world, Asian, and Southeast Asian Games records were as follows.

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