The men's 200 metre freestyle event at the 2015 SEA Games took place on 6 June 2015 at the OCBC Aquatic Centre in Singapore.

[1] There were 13 competitors from seven countries who took part in this event.

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.

Prior to this competition, the existing Asian and Games records were as follows: The following records were established during the competition: All times are Singapore Standard Time (UTC+08:00) The first round was held on 6 June.

The final was held on 6 June.