Swimming at the 2007 Pan American Games – Men's 400 metre freestyle
# Swimming at the 2007 Pan American Games – Men's 400 metre freestyle

The Men's 400m Freestyle event at the 2007 Pan American Games occurred at the Maria Lenk Aquatic Park in Rio de Janeiro, Brazil on 17 and 18 July. A total of 17 swimmers initially swam the race.

## Medalists

| Gold | Matt Patton United States |
| - | - |
| Silver | Tobias Work United States |
| Bronze | Armando Negreiros Brazil |

## Results

| Rank | Swimmer | Semifinals | Semifinals | Final |
| - | - | - | - | - |
| Rank | Swimmer | Time | Rank | Time |
| 1 | Matt Patton (USA) | 3:53.30 | 3 | 3:49.77 |
| 2 | Tobias Work (USA) | 3:51.32 | 1 | 3:50.62 |
| 3 | Armando Negreiros (BRA) | 3:51.47 | 2 | 3:51.18 |
| 4 | Felipe Araujo (BRA) | 3:57.34 | 5 | 3:55.93 |
| 5 | Kler Maitland (CAN) | 3:57.64 | 6 | 3:57.51 |
| 6 | Iván López (MEX) | 3:57.25 | 4 | 3:59.53 |
| 7 | Daniel Delgadillo (MEX) | 4:00.36 | 8 | 3:59.66 |
| 8 | Juan Pereyra (ARG) | 3:59.97 | 7 | 4:02.91 |
| 9 | Gian Carlo Zolezzi (CHI) | 4:00.37 | | |
| 10 | Alejandro Gómez (VEN) | 4:00.76 | | |
| 11 | Erwin Maldonado (VEN) | 4:01.63 | | |
| 12 | Oscar Jahnsen (PER) | 4:02.01 | | |
| 13 | Salvador Mallat (CHI) | 4:02.37 | | |
| 14 | Evan Marcus (GUA) | 4:06.37 | | |
| 15 | Daniel Quiepo (URU) | 4:07.14 | | |
| 16 | Mario Montoya (CRC) | 4:07.47 | | |
| 17 | Micky van der Vaart (ARU) | 4:12.68 | | |
