| Event: | Swimming – Men's 4 x 100 metre freestyle relay |
| Games: | 2015 |
| Venue: | OCBC Aquatic Centre |
| Date: | 9 June 2015 |
| Competitors: | 20 |
| Nations: | 5 |
| Prev: | 2013 |
| Next: | 2017 |
See main article: Swimming at the 2015 SEA Games. The men's 4 x 100 metre freestyle relay competition of the swimming events at the 2015 SEA Games was held on 9 June at the OCBC Aquatic Centre in Singapore.[1]
All times are Singapore Standard Time
The following records were established during the competition:
| KEY: | GR | Games record | NR | National record | PB | Personal best | SB | Seasonal best |
The final was held on 9 June.
| width=40 | Rank | width=40 | Lane | width=250 | Team | width=80 | Time | width=50 | Notes |
|---|---|---|---|---|---|---|---|---|---|
| 4 | 3:19.59 | GR | |||||||
| 6 | 3:25.55 | ||||||||
| 5 | 3:25.92 | ||||||||
| 4 | 3 | 3:26.64 | NR | ||||||
| 5 | 1 | 3:54.35 |