Finale: 14.08.2004
| Medaille | Sportler | Nation |
| Gold | Michael Phelps | USA |
| Silber | Erik Vendt | USA |
| Bronze | Laszlo Cseh | Ungarn |
| Rang | Sportler | Nation | Minuten |
| 1 | Michael Phelps | USA | 4:08,26 WR |
| 2 | Erik Vendt | USA | 4:11,81 |
| 3 | Laszlo Cseh | Ungarn | 4:12,15 |
| 4 | Alessio Boggiatto | Italien | 4:12,28 |
| 5 | Oussama Mellouli | Tunesien | 4:14,49 |
| 6 | Ioannis Kokkodis | Griechenland | 4:18,60 |
| 7 | Jiro Miki | Japan | 4:19,97 |
| 8 | Travis Nederpelt | Australien | 4:20,08 |