Athletics at the 2003 Pan American Games – Women's 400 metres hurdles
# Athletics at the 2003 Pan American Games – Women's 400 metres hurdles

The final of the Women's 400 metres Hurdles event at the 2003 Pan American Games took place on Wednesday August 6, 2003, with the heats staged a day earlier. America's Joanna Hayes was the only woman to go under the 55-seconds barrier, clocking 54.77 in the final.

## Medalists

| Gold | Joanna Hayes United States |
| - | - |
| Silver | Daimí Pernía Cuba |
| Bronze | Andrea Blackett Barbados |

## Records

| World Record | Kim Batten (USA) | 52.61 s | August 11, 1995 | Gothenburg, Sweden |
| - | - | - | - | - |
| Pan Am Record | Daimí Pernía (CUB) | 53.44 s | July 28, 1999 | Winnipeg, Canada |

## Results

| Rank | Athlete | Heats | Heats | Final |
| - | - | - | - | - |
| Rank | Athlete | Time | Rank | Time |
| 1 | Joanna Hayes (USA) | 55.64 | 1 | 54.77 |
| 2 | Daimí Pernía (CUB) | 55.77 | 3 | 55.10 |
| 3 | Andrea Blackett (BAR) | 55.86 | 5 | 55.24 |
| 4 | Brenda Taylor (USA) | 55.76 | 2 | 55.27 |
| 5 | Yvonne Harrison (PUR) | 55.79 | 4 | 55.27 |
| 6 | Allison Beckford (JAM) | 56.85 | 8 | 55.50 |
| 7 | Debbie-Ann Parris-Thymes (JAM) | 55.97 | 6 | 56.73 |
| 8 | Lucimar Teodoro (BRA) | 56.33 | 7 | 57.56 |
| 9 | Princesa Oliveros (COL) | 57.44 | 9 |
| 10 | Yudalis Díaz (CUB) | 57.92 | 10 |
| 11 | Jazmín Rodríguez (DOM) | 58.42 | 11 |
| 12 | Perla dos Santos (BRA) | 1:00.28 | 12 |
