Swimming at the 2015 SEA Games – Men's 100 metre freestyle

The men's 100 metre freestyle competition of the swimming event at the 2015 SEA Games was held on 7 June at the OCBC Aquatic Centre in Kallang, Singapore.

Records
Prior to this competition, the existing Asian and Games records were as follows:

The following records were established during the competition:

Schedule
All times are Singapore Standard Time (UTC+08:00)

Heat 1

 * Source: Heat 1 results

Heat 1 was held on 7 June.

Heat 2

 * Source: Heat 2 results

Heat 2 was held on 7 June.

Final

 * Source: Final Results

The final was held on 7 June.