The women's triple jump event at the 2004 World Junior Championships in Athletics was held in Grosseto, Italy, at Stadio Olimpico Carlo Zecchini on 13 and 15 July.
| Gold | Anastasiya Taranova | |
| Silver | Xie Limei | |
| Bronze | Tatyana Yakovleva |
15 July
| Rank | Name | Nationality | Attempts | Result | Notes | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 | ||||||||
| align=left | align=left | | 13.94 (w: +0.5 m/s) | 13.79 (w: +1.2 m/s) | 13.54 (w: +1.1 m/s) | 13.80 (w: +1.1 m/s) | 13.92 (w: +0.7 m/s) | 13.85 (w: +0.7 m/s) | 13.94 (w: +0.5 m/s) | ||||
| align=left | align=left | | x | 13.66 (w: -0.2 m/s) | 13.38 (w: -0.1 m/s) | 13.76 (w: +0.7 m/s) | 13.77 (w: +1.3 m/s) | x | 13.77 (w: +1.3 m/s) | ||||
| align=left | align=left | | 13.40 (w: -0.4 m/s) | x | x | 13.24 (w: +1.1 m/s) | 13.67 (w: +1.0 m/s) | 13.27 (w: +0.5 m/s) | 13.67 (w: +1.0 m/s) | ||||
| 4 | align=left | align=left |  | x | 13.65 (w: +0.4 m/s) | x | x | 12.99 (w: +0.7 m/s) | 13.40 (w: +0.3 m/s) | 13.65 (w: +0.4 m/s) | |||
| 5 | align=left | align=left | | 13.53 (w: -0.7 m/s) | 13.33 (w: +1.2 m/s) | x | 13.51 (w: +0.4 m/s) | 13.46 (w: +0.4 m/s) | 13.50 (w: +0.2 m/s) | 13.53 (w: -0.7 m/s) | |||
| 6 | align=left | align=left |  | 13.09 (w: +0.4 m/s) | 11.16 (w: +0.6 m/s) | 12.89 (w: 0.0 m/s) | 13.47 (w: +1.0 m/s) | x | 13.16 (w: +0.5 m/s) | 13.47 (w: +1.0 m/s) | |||
| 7 | align=left | align=left |  | 12.92 (w: -0.3 m/s) | 13.41 (w: +0.7 m/s) | 13.33 (w: +1.5 m/s) | 13.41 (w: +0.8 m/s) | x | 13.44 (w: -0.2 m/s) | 13.44 (w: -0.2 m/s) | |||
| 8 | align=left | align=left | | 13.09 (w: -0.3 m/s) | 13.13 (w: -0.2 m/s) | 13.11 (w: +0.4 m/s) | 13.20 (w: +1.0 m/s) | 13.11 (w: +0.7 m/s) | 12.85 (w: 0.0 m/s) | 13.20 (w: +1.0 m/s) | |||
| 9 | align=left | align=left | 12.93 (w: -0.6 m/s) | 12.93 (w: +0.7 m/s) | 13.04 (w: +1.6 m/s) | 13.04 (w: +1.6 m/s) | |||||||
| 10 | align=left | align=left | | 12.83 (w: +0.6 m/s) | x | 12.95 (w: +1.0 m/s) | 12.95 (w: +1.0 m/s) | ||||||
| 11 | align=left | align=left |  | 12.09 (w: +0.2 m/s) | 12.82 (w: +0.4 m/s) | 12.89 (w: +0.1 m/s) | 12.89 (w: +0.1 m/s) | ||||||
| 12 | align=left | align=left |  | 12.52 (w: +0.4 m/s) | 12.63 (w: +0.2 m/s) | 12.87 (w: +0.8 m/s) | 12.87 (w: +0.8 m/s) | ||||||
13 July
| Rank | Name | Nationality | Attempts | Result | Notes | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | ||||||||
| 1 | align=left | align=left | | 12.82 (w: -1.7 m/s) | 13.68 (w: +0.3 m/s) | - | 13.68 (w: +0.3 m/s) | Q | ||
| 2 | align=left | align=left | | 12.70 (w: +0.4 m/s) | 12.77 (w: -0.9 m/s) | 13.46 (w: -0.1 m/s) | 13.46 (w: -0.1 m/s) | Q | ||
| 3 | align=left | align=left | | 13.46 (w: -0.3 m/s) | - | - | 13.46 (w: -0.3 m/s) | Q | ||
| 4 | align=left | align=left | | 13.06 (w: -0.1 m/s) | 13.14 (w: -0.6 m/s) | 13.36 (w: -0.1 m/s) | 13.36 (w: -0.1 m/s) | Q | ||
| 5 | align=left | align=left |  | 13.15 (w: -2.1 m/s) | 13.07 (w: -1.2 m/s) | 12.49 (w: -0.9 m/s) | 13.15 (w: -2.1 m/s) | |||
| 6 | align=left | align=left |  | 12.93 (w: -1.7 m/s) | x | 13.04 (w: 0.0 m/s) | 13.04 (w: 0.0 m/s) | |||
| 7 | align=left | align=left | | 12.78 (w: +1.3 m/s) | 12.40 (w: -1.7 m/s) | 12.96 (w: +0.2 m/s) | 12.96 (w: +0.2 m/s) | |||
| 8 | align=left | align=left | 12.44 (w: +0.1 m/s) | 12.51 (w: -0.7 m/s) | 12.34 (w: -1.5 m/s) | 12.51 (w: -0.7 m/s) | ||||
| 9 | align=left | align=left |  | 12.25 (w: -0.7 m/s) | 12.16 (w: +1.7 m/s) | 11.75 (w: -1.5 m/s) | 12.25 (w: -0.7 m/s) | |||
| 10 | align=left | align=left | 12.13 (w: +0.7 m/s) | 12.10 (w: +0.1 m/s) | 12.15 (w: -0.2 m/s) | 12.15 (w: -0.2 m/s) | ||||
| 11 | align=left | align=left |  | x | 12.00 (w: +1.7 m/s) | 10.33 (w: -0.4 m/s) | 12.00 (w: +1.7 m/s) | |||
| 12 | align=left | align=left |  | x | x | 11.14 (w: -1.7 m/s) | 11.14 (w: -1.7 m/s) | |||
| Rank | Name | Nationality | Attempts | Result | Notes | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | ||||||||
| 1 | align=left | align=left | | 13.11 (w: +1.8 m/s) | 13.45 (w: +0.6 m/s) | - | 13.45 (w: +0.6 m/s) | Q | ||
| 2 | align=left | align=left | | 13.43 (w: -1.0 m/s) | - | - | 13.43 (w: -1.0 m/s) | Q | ||
| 3 | align=left | align=left | | 13.37 (w: +0.1 m/s) | - | - | 13.37 (w: +0.1 m/s) | Q | ||
| 4 | align=left | align=left | | x | 13.35 (w: +1.1 m/s) | - | 13.35 (w: +1.1 m/s) | Q | ||
| 5 | align=left | align=left | | 12.76 (w: -0.7 m/s) | 13.33 (w: +1.4 m/s) | - | 13.33 (w: +1.4 m/s) | Q | ||
| 6 | align=left | align=left | | 13.31 (w: +1.0 m/s) | - | - | 13.31 (w: +1.0 m/s) | Q | ||
| 7 | align=left | align=left | | 12.77 (w: -0.7 m/s) | 13.30 (w: -0.3 m/s) | - | 13.30 (w: -0.3 m/s) | Q | ||
| 8 | align=left | align=left | 12.97 (w: +1.8 m/s) | 12.53 (w: -1.4 m/s) | 13.27 w (w: +2.3 m/s) | 13.27 w (w: +2.3 m/s) | Q | |||
| 9 | align=left | align=left |  | 12.84 (w: +0.4 m/s) | x | 12.82 (w: +0.3 m/s) | 12.84 (w: +0.4 m/s) | |||
| 10 | align=left | align=left | | 11.29 (w: -1.6 m/s) | 12.55 (w: -0.1 m/s) | 12.49 (w: -0.9 m/s) | 12.55 (w: -0.1 m/s) | |||
| 11 | align=left | align=left |  | 12.39 (w: -2.1 m/s) | 12.06 (w: -0.9 m/s) | 12.47 (w: 0.0 m/s) | 12.47 (w: 0.0 m/s) | |||
| align=left | align=left |  | x | x | x | NM | ||||
According to an unofficial count, 24 athletes from 17 countries participated in the event.