| Event: | Men's 400 metre freestyle |
| Competition: | 2013 Mediterranean Games |
| Dates: | June 21, 2013 |
| Competitors: | 18 |
| Nations: | 10 |
The men's 400 metre freestyle competition of the swimming events at the 2013 Mediterranean Games took place on June 21 at the Mersin Olympic Swimming Pool in Mersin, Turkey.[1] Oussama Mellouli of Tunisia was the defending champion from the 2009 Mediterranean Games.
This race consisted of eight lengths of the pool in freestyle.
All times are Eastern European Summer Time
| width=220 | Date | width=50 | Time | width=100 | Event |
|---|---|---|---|---|---|
| Friday, 21 June 2013 | 10:35 | Heats | |||
| 18:00 | Final |
Prior to this competition, the existing world and Mediterranean Games records were as follows:
| World record | 3:40.07 | Rome, Italy | July 26, 2009 | ||
| Mediterranean Games record | 3:42.71 | Pescara, Italy | June 27, 2009 |
| Rank | Heat | Lane | Name | Nationality | Time | Notes | |
|---|---|---|---|---|---|---|---|
| 1 | 1 | 4 | Ahmed Mathlouthi | 3:53.81 | Q | ||
| 2 | 2 | 5 | Velimir Stjepanović | 3:54.97 | Q | ||
| 3 | 1 | 3 | Marwan Elkamash | 3:55.18 | Q | ||
| 4 | 1 | 6 | Simon Guerin | 3:55.37 | Q | ||
| 5 | 3 | 6 | Adonios Fokaidis | 3:55.48 | Q | ||
| 6 | 2 | 6 | Nezir Karap | 3:55.51 | Q | ||
| 7 | 3 | 4 | Oussama Mellouli | 3:55.81 | Q | ||
| 8 | 3 | 5 | Alex Di Giorgio | 3:55.82 | Q | ||
| 9 | 3 | 2 | Ahmed Akram | 3:56.55 | |||
| 10 | 2 | 4 | Samuel Pizzetti | 3:56.56 | |||
| 11 | 2 | 3 | Martin Bau | 3:57.63 | |||
| 12 | 3 | 3 | Lucas Vigoretto | 3:58.19 | |||
| 13 | 1 | 2 | Ediz Yıldırımer | 3:58.29 | |||
| 14 | 1 | 5 | Stefan Šorak | 3:58.43 | |||
| 15 | 2 | 2 | Antonio Arroyo | 3:59.07 | |||
| 16 | 1 | 7 | Marko Blaževski | 4:00.53 | |||
| 17 | 3 | 7 | Jan Karel Petric | 4:05.82 | |||
| 18 | 2 | 7 | Gerard Rodríguez | 4:07.63 |