Swimming at the 2008 Summer Olympics – Men's 400 metre freestyle Heats Heats

| Heat | Lane | Name_ | Nationality | Time_ |
|---|---|---|---|---|
| 2 | 2 | Jon Raahauge Rud | Denmark | 3:57.41 |
| 1 | 6 | Juan Martín Pereyra | Argentina | 3:59.35 |
| 1 | 2 | Oleg Rabota | Kazakhstan | 4:02.16 |
| 2 | 1 | Luka Turk | Slovenia | DNS |