The women's triple jump event at the 2002 World Junior Championships in Athletics was held in Kingston, Jamaica, at National Stadium on 16 and 17 July.
| Gold | Mabel Gay | |
| Silver | Arianna Martínez | |
| Bronze | Keila Costa |
17 July
| Rank | Name | Nationality | Attempts | Result | Notes | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 | ||||||||
| align=left | align=left | | 13.51 (w: -1.1 m/s) | x | 13.73 (w: -0.7 m/s) | 13.23 (w: -0.4 m/s) | 13.76 (w: -0.1 m/s) | 14.09 (w: +1.3 m/s) | 14.09 (w: +1.3 m/s) | ||||
| align=left | align=left | | 13.46 (w: -1.2 m/s) | x | 13.49 (w: -0.4 m/s) | 13.46 (w: -0.9 m/s) | 13.74 (w: +0.4 m/s) | 13.64 (w: +1.1 m/s) | 13.74 (w: +0.4 m/s) | ||||
| align=left | align=left | | 13.30 (w: -1.3 m/s) | 13.31 (w: -0.5 m/s) | 13.47 (w: +0.1 m/s) | 13.56 (w: -0.6 m/s) | 13.68 (w: -0.1 m/s) | 13.70 (w: +0.5 m/s) | 13.70 (w: +0.5 m/s) | ||||
| 4 | align=left | align=left |  | 13.14 (w: -0.2 m/s) | x | 13.31 (w: +0.3 m/s) | 12.86 (w: -0.6 m/s) | 13.13 (w: -0.2 m/s) | x | 13.31 (w: +0.3 m/s) | |||
| 5 | align=left | align=left |  | 13.12 (w: -0.9 m/s) | 13.06 (w: -0.1 m/s) | 13.02 (w: -0.6 m/s) | 13.17 (w: +0.4 m/s) | 13.13 (w: -0.2 m/s) | 13.16 (w: +0.6 m/s) | 13.17 (w: +0.4 m/s) | |||
| 6 | align=left | align=left |  | 12.80 (w: -1.1 m/s) | 12.83 (w: -0.6 m/s) | x | x | 12.97 (w: +0.3 m/s) | 12.57 (w: +0.1 m/s) | 12.97 (w: +0.3 m/s) | |||
| 7 | align=left | align=left | 12.48 (w: -0.6 m/s) | 12.75 (w: -0.5 m/s) | x | 12.84 (w: +0.6 m/s) | 12.07 (w: 0.0 m/s) | 12.94 (w: +0.1 m/s) | 12.94 (w: +0.1 m/s) | ||||
| 8 | align=left | align=left |  | 12.91 (w: -1.2 m/s) | x | x | x | 12.86 (w: +0.2 m/s) | 12.77 (w: +0.3 m/s) | 12.91 (w: -1.2 m/s) | |||
| 9 | align=left | align=left |  | 12.32 (w: -0.5 m/s) | 12.73 (w: -0.6 m/s) | 12.21 (w: -0.2 m/s) | 12.73 (w: -0.6 m/s) | ||||||
| 10 | align=left | align=left | x | x | 12.62 (w: -0.3 m/s) | 12.62 (w: -0.3 m/s) | |||||||
| 11 | align=left | align=left |  | x | 12.38 (w: -0.9 m/s) | 12.06 (w: 0.0 m/s) | 12.38 (w: -0.9 m/s) | ||||||
| 12 | align=left | align=left |  | x | x | 11.33 (w: -0.2 m/s) | 11.33 (w: -0.2 m/s) | ||||||
16 Jul
| Rank | Name | Nationality | Attempts | Result | Notes | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | ||||||||
| 1 | align=left | align=left | | 13.14 (w: 0.0 m/s) | 13.49 (w: +0.8 m/s) | - | 13.49 (w: +0.8 m/s) | Q | ||
| 2 | align=left | align=left | | 13.40 (w: +0.3 m/s) | - | - | 13.40 (w: +0.3 m/s) | Q | ||
| 3 | align=left | align=left | | 13.25 (w: +1.1 m/s) | - | - | 13.25 (w: +1.1 m/s) | Q | ||
| 4 | align=left | align=left | | x | 13.12 (w: +0.3 m/s) | x | 13.12 (w: +0.3 m/s) | q | ||
| 5 | align=left | align=left | | 12.81 (w: +0.5 m/s) | 13.06 (w: +1.1 m/s) | 13.09 (w: +0.3 m/s) | 13.09 (w: +0.3 m/s) | q | ||
| 6 | align=left | align=left | | 13.02 (w: +1.3 m/s) | x | 12.89 (w: +0.5 m/s) | 13.02 (w: +1.3 m/s) | q | ||
| 7 | align=left | align=left |  | 12.25 (w: +0.6 m/s) | 12.81 (w: +0.4 m/s) | 12.59 (w: +0.4 m/s) | 12.81 (w: +0.4 m/s) | |||
| 8 | align=left | align=left | x | 12.77 (w: +0.8 m/s) | 12.58 (w: +1.6 m/s) | 12.77 (w: +0.8 m/s) | ||||
| 9 | align=left | align=left |  | 12.43 (w: +0.5 m/s) | 12.69 (w: +0.6 m/s) | 12.14 (w: +1.0 m/s) | 12.69 (w: +0.6 m/s) | |||
| 10 | align=left | align=left |  | 12.01 (w: +0.9 m/s) | 12.11 (w: +0.4 m/s) | 12.17 (w: +1.1 m/s) | 12.17 (w: +1.1 m/s) | |||
| Rank | Name | Nationality | Attempts | Result | Notes | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | ||||||||
| 1 | align=left | align=left | | 13.67 (w: +1.0 m/s) | - | - | 13.67 (w: +1.0 m/s) | Q | ||
| 2 | align=left | align=left | | 13.11 (w: +0.1 m/s) | 13.27 (w: +0.7 m/s) | - | 13.27 (w: +0.7 m/s) | Q | ||
| 3 | align=left | align=left | x | 13.03 (w: +1.2 m/s) | 13.09 (w: +0.8 m/s) | 13.09 (w: +0.8 m/s) | q | |||
| 4 | align=left | align=left | | x | 12.97 (w: +0.2 m/s) | x | 12.97 (w: +0.2 m/s) | q | ||
| 4 | align=left | align=left | | 12.97 (w: +0.4 m/s) | x | x | 12.97 (w: +0.4 m/s) | q | ||
| 6 | align=left | align=left | 12.71 (w: +0.5 m/s) | 12.89 (w: +0.9 m/s) | x | 12.89 (w: +0.9 m/s) | q | |||
| 7 | align=left | align=left |  | 12.66 (w: +0.5 m/s) | 12.41 (w: +0.8 m/s) | 12.76 (w: +0.7 m/s) | 12.76 (w: +0.7 m/s) | |||
| 8 | align=left | align=left | | x | 12.76 (w: +1.0 m/s) | 11.96 (w: +0.4 m/s) | 12.76 (w: +1.0 m/s) | |||
| 9 | align=left | align=left |  | 11.45 (w: +0.3 m/s) | 11.61 (w: +0.4 m/s) | 11.40 (w: +0.6 m/s) | 11.61 (w: +0.4 m/s) | |||
| 10 | align=left | align=left |  | x | x | 11.51 (w: +1.1 m/s) | 11.51 (w: +1.1 m/s) | |||
| align=left | align=left |  | x | x | x | NM | ||||
According to an unofficial count, 21 athletes from 18 countries participated in the event.