Athletics at the 1987 Pan American Games – Men's 400 metres hurdles
# Athletics at the 1987 Pan American Games – Men's 400 metres hurdles

The men's 400 metres hurdles event at the 1987 Pan American Games was held in Indianapolis, United States on 10 and 12 August.

## Medalists

| Gold | Silver | Bronze |
| - | - | - |
| Winthrop Graham Jamaica | Kevin Young United States | David Patrick United States |

## Results

### Heats

| Rank | Heat | Name | Nationality | Time | Notes |
| - | - | - | - | - | - |
| 1 | 2 | Winthrop Graham | Jamaica | 49.85 | Q |
| 2 | 1 | David Patrick | United States | 49.97 | Q |
| 3 | 2 | Kevin Young | United States | 50.16 | Q |
| 4 | 2 | John Graham | Canada | 50.24 | Q |
| 5 | 1 | Randy Cox | Trinidad and Tobago | 50.30 | Q |
| 6 | 1 | Antônio Dias Ferreira | Brazil | 50.49 | Q |
| 7 | 1 | Pablo Squella | Chile | 50.65 | q |
| 8 | 1 | Greg Rolle | Bahamas | 50.77 | q |
| 9 | 2 | Pedro Chiamulera | Brazil | 51.10 | |
| 10 | 2 | David Charlton | Bahamas | 51.58 | |
| 11 | 1 | Domingo Cordero | Puerto Rico | 51.95 | |
| 12 | 2 | Efrain Pedroza | Mexico | 52.87 | |
| 13 | 1 | Oral Selkridge | Antigua and Barbuda | 53.45 | |
| 14 | 2 | Mauricio Carranza | El Salvador | 55.38 | |
| | 2 | Floyd Brown | United States Virgin Islands | DNF | |

### Final

| Rank | Name | Nationality | Time | Notes |
| - | - | - | - | - |
| | Winthrop Graham | Jamaica | 48.49 | GR, NR |
| | Kevin Young | United States | 48.74 | |
| | David Patrick | United States | 49.47 | |
| 4 | John Graham | Canada | 49.51 | NR |
| 5 | Pablo Squella | Chile | 50.17 | |
| 6 | Antônio Dias Ferreira | Brazil | 50.20 | |
| 7 | Randy Cox | Trinidad and Tobago | 50.47 | |
| 8 | Greg Rolle | Bahamas | 50.50 | |
