Athletics at the 1959 Pan American Games – Men's 400 metres hurdles
# Athletics at the 1959 Pan American Games – Men's 400 metres hurdles

The men's 400 metres hurdles event at the 1959 Pan American Games was held at the Soldier Field in Chicago on 28 and 29 August.

## Medalists

| Gold | Silver | Bronze |
| - | - | - |
| Josh Culbreath United States | Dick Howard United States | Cliff Cushman United States |

## Results

### Heats

| Rank | Heat | Name | Nationality | Time | Notes |
| - | - | - | - | - | - |
| 1 | 1 | Josh Culbreath | United States | 53.2 | Q |
| 2 | 1 | Victor Flores | Venezuela | 54.1 | Q |
| 3 | 1 | Anubes da Silva | Brazil | 54.4 | Q |
| | 1 | Ovidio de Jesús | Puerto Rico | DNF | |
| | 1 | Heber Etcheverry | Uruguay | DQ | |
| 1 | 2 | Dick Howard | United States | 53.5 | Q |
| 2 | 2 | Cliff Cushman | United States | 53.5 | Q |
| 3 | 2 | Ulysses dos Santos | Brazil | 53.6 | Q |
| 4 | 2 | Gabriel Roldán | Mexico | 54.5 | |
| 5 | 2 | George Shepherd | Canada | 55.6 | |
| 6 | 2 | Armando Betancourt | Cuba | ??.? | |

### Final

| Rank | Name | Nationality | Time |
| - | - | - | - |
| | Josh Culbreath | United States | 51.2 |
| | Dick Howard | United States | 51.3 |
| | Cliff Cushman | United States | 53.0 |
| 4 | Anubes da Silva | Brazil | 53.1 |
| 5 | Ulysses dos Santos | Brazil | 53.2 |
| 6 | Victor Flores | Venezuela | 53.4 |
