The women's 400 metres hurdles event at the 2004 World Junior Championships in Athletics was held in Grosseto, Italy, at Stadio Olimpico Carlo Zecchini on 14 and 15 July. [1] [2]
| Gold | Yekaterina Kostetskaya |
| Silver | Zuzana Hejnová |
| Bronze | Sherene Pinnock |
15 July
| Rank | Name | Nationality | Time | Notes |
|---|---|---|---|---|
| Yekaterina Kostetskaya | 55.55 | |||
| Zuzana Hejnová | 57.44 | |||
| Sherene Pinnock | 57.54 | |||
| 4 | Nicole Leach | 57.56 | ||
| 5 | He Yu | 58.11 | ||
| 6 | Tatyana Azarova | 58.41 | ||
| 7 | Irina Obedina | 58.63 | ||
| 8 | Angela Moroșanu | 63.10 |
14 July
| Rank | Name | Nationality | Time | Notes |
|---|---|---|---|---|
| 1 | Yekaterina Kostetskaya | 56.84 | Q | |
| 2 | Sherene Pinnock | 58.58 | Q | |
| 3 | Miki Sawada | 59.23 | ||
| 4 | Heike Wissing | 60.20 | ||
| 5 | Christina Smith | 60.42 | ||
| 6 | Elisa Scardanzan | 61.52 | ||
| 7 | Sareteka Mbango | 66.07 |
| Rank | Name | Nationality | Time | Notes |
|---|---|---|---|---|
| 1 | Nicole Leach | 57.98 | Q | |
| 2 | Tatyana Azarova | 58.36 | Q | |
| 3 | Irina Obedina | 58.96 | q | |
| 4 | Eva-Maria Erwes | 60.65 | ||
| 5 | Olga Ortega | 60.92 | ||
| 6 | Nikolina Horvat | 61.14 | ||
| 7 | Jessica Miller | 61.74 |
| Rank | Name | Nationality | Time | Notes |
|---|---|---|---|---|
| 1 | He Yu | 58.12 | Q | |
| 2 | Angela Moroșanu | 58.30 | Q | |
| 3 | Zuzana Hejnová | 59.08 | q | |
| 4 | Doura Jémaa | 59.82 | ||
| 5 | Faye Harding | 60.31 | ||
| 6 | Sara Petersen | 60.60 | ||
| 7 | Anastasiya Proshkina | 64.33 | ||
| 8 | Trishana McGowan | 66.65 |
According to an unofficial count, 22 athletes from 18 countries participated in the event.