The women's triple jump event at the 2008 World Junior Championships in Athletics was held in Bydgoszcz, Poland, at Zawisza Stadium on 8 and 10 July.
| Gold | Dailenis Alcántara | |
| Silver | Yosleidis Rivalta | |
| Bronze | Paraskeví Papahrístou |
10 July
| Rank | Name | Nationality | Attempts | Result | Notes | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 | ||||||||
| align=left | align=left | | 14.25 (w: -0.5 m/s) | 14.06 (w: -0.4 m/s) | 14.20 (w: -0.8 m/s) | 13.50 (w: -0.5 m/s) | 14.06 (w: -0.6 m/s) | 14.18 (w: 0.0 m/s) | 14.25 (w: -0.5 m/s) | ||||
| align=left | align=left | | 13.64 (w: -0.1 m/s) | x | 13.42 (w: -0.8 m/s) | 13.66 (w: -0.2 m/s) | 13.82 (w: -0.8 m/s) | 13.85 (w: 0.0 m/s) | 13.85 (w: 0.0 m/s) | ||||
| align=left | align=left | 13.74 (w: -0.8 m/s) | 13.73 (w: -0.2 m/s) | 13.56 (w: -0.7 m/s) | x | 13.60 (w: -1.1 m/s) | 13.70 (w: -0.2 m/s) | 13.74 (w: -0.8 m/s) | |||||
| 4 | align=left | align=left |  | 13.53 (w: -1.1 m/s) | 13.36 (w: -0.9 m/s) | 13.29 (w: -0.6 m/s) | 13.61 (w: -0.2 m/s) | 13.53 (w: -0.1 m/s) | 13.06 (w: -0.2 m/s) | 13.61 (w: -0.2 m/s) | |||
| 5 | align=left | align=left |  | 13.34 (w: -0.5 m/s) | 13.05 (w: -0.3 m/s) | 13.40 (w: -0.9 m/s) | x | 13.31 (w: -0.2 m/s) | 13.27 (w: -0.2 m/s) | 13.40 (w: -0.9 m/s) | |||
| 6 | align=left | align=left |  | 13.23 (w: -0.1 m/s) | 12.81 (w: -0.7 m/s) | 12.96 (w: -0.2 m/s) | 13.10 (w: -1.8 m/s) | 12.51 (w: -0.3 m/s) | 12.97 (w: -0.5 m/s) | 13.23 (w: -0.1 m/s) | |||
| 7 | align=left | align=left |  | x | 12.99 (w: -1.2 m/s) | 13.22 (w: -1.1 m/s) | x | x | x | 13.22 (w: -1.1 m/s) | |||
| 8 | align=left | align=left | | 12.31 (w: -1.2 m/s) | 12.87 (w: 0.0 m/s) | 13.15 (w: -0.9 m/s) | 12.92 (w: -1.2 m/s) | x | 11.75 (w: -0.2 m/s) | 13.15 (w: -0.9 m/s) | |||
| 9 | align=left | align=left | 12.61 (w: -0.2 m/s) | 12.70 (w: -0.5 m/s) | 13.09 (w: -0.1 m/s) | 13.09 (w: -0.1 m/s) | |||||||
| 10 | align=left | align=left | 12.80 (w: -0.1 m/s) | 13.01 (w: -0.8 m/s) | x | 13.01 (w: -0.8 m/s) | |||||||
| 11 | align=left | align=left | 12.66 (w: 0.0 m/s) | x | 12.76 (w: 0.0 m/s) | 12.76 (w: 0.0 m/s) | |||||||
| 12 | align=left | align=left |  | x | 12.58 (w: -0.5 m/s) | 12.59 (w: -0.3 m/s) | 12.59 (w: -0.3 m/s) | ||||||
8 July
| Rank | Name | Nationality | Attempts | Result | Notes | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | ||||||||
| 1 | align=left | align=left | | 13.61 (w: -0.4 m/s) | - | - | 13.61 (w: -0.4 m/s) | Q | ||
| 2 | align=left | align=left | 13.31 (w: -0.7 m/s) | 13.22 (w: -0.9 m/s) | 13.30 (w: -0.5 m/s) | 13.31 (w: -0.7 m/s) | q | |||
| 3 | align=left | align=left | | 12.36 (w: -0.6 m/s) | x | 13.19 (w: -1.4 m/s) | 13.19 (w: -1.4 m/s) | q | ||
| 4 | align=left | align=left | 12.68 (w: -0.3 m/s) | 13.16 (w: -0.8 m/s) | 12.81 (w: -0.3 m/s) | 13.16 (w: -0.8 m/s) | q | |||
| 5 | align=left | align=left | | x | 13.16 (w: -0.6 m/s) | 12.56 (w: -1.5 m/s) | 13.16 (w: -0.6 m/s) | q | ||
| 6 | align=left | align=left | 12.76 (w: -0.3 m/s) | 12.29 (w: -0.5 m/s) | 13.10 (w: -0.7 m/s) | 13.10 (w: -0.7 m/s) | q | |||
| 7 | align=left | align=left |  | 12.73 (w: -0.6 m/s) | 12.97 (w: -0.1 m/s) | 12.93 (w: 0.0 m/s) | 12.97 (w: -0.1 m/s) | |||
| 8 | align=left | align=left |  | 12.42 (w: -0.1 m/s) | 12.97 (w: 0.0 m/s) | 12.36 (w: -0.7 m/s) | 12.97 (w: 0.0 m/s) | |||
| 9 | align=left | align=left |  | 12.69 (w: -0.6 m/s) | x | 12.82 (w: -0.6 m/s) | 12.82 (w: -0.6 m/s) | |||
| 10 | align=left | align=left | 12.61 (w: -0.6 m/s) | 12.79 (w: -0.3 m/s) | 12.45 (w: 0.0 m/s) | 12.79 (w: -0.3 m/s) | ||||
| 11 | align=left | align=left |  | 12.49 (w: -0.8 m/s) | 12.72 (w: -1.2 m/s) | 12.54 (w: 0.0 m/s) | 12.72 (w: -1.2 m/s) | |||
| 12 | align=left | align=left | | 12.46 (w: -0.1 m/s) | 12.66 (w: -0.7 m/s) | x | 12.66 (w: -0.7 m/s) | |||
| 13 | align=left | align=left | 12.34 (w: 0.0 m/s) | 12.02 (w: 0.0 m/s) | 12.40 (w: -0.3 m/s) | 12.40 (w: -0.3 m/s) | ||||
| 14 | align=left | align=left | | 12.30 (w: -0.1 m/s) | 12.10 (w: -0.3 m/s) | 12.29 (w: -0.5 m/s) | 12.30 (w: -0.1 m/s) | |||
| 15 | align=left | align=left |  | 12.11 (w: -0.2 m/s) | 12.03 (w: -0.3 m/s) | 11.84 (w: -0.9 m/s) | 12.11 (w: -0.2 m/s) | |||
| Rank | Name | Nationality | Attempts | Result | Notes | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | ||||||||
| 1 | align=left | align=left | | 13.60 (w: -1.3 m/s) | - | - | 13.60 (w: -1.3 m/s) | Q | ||
| 2 | align=left | align=left | | 12.93 (w: -0.4 m/s) | 13.41 (w: -0.1 m/s) | - | 13.41 (w: -0.1 m/s) | Q | ||
| 3 | align=left | align=left | | 13.02 (w: -1.2 m/s) | 13.32 (w: -0.2 m/s) | 13.15 (w: -1.1 m/s) | 13.32 (w: -0.2 m/s) | q | ||
| 4 | align=left | align=left | | x | x | 13.25 (w: -0.1 m/s) | 13.25 (w: -0.1 m/s) | q | ||
| 5 | align=left | align=left | 13.16 (w: -0.3 m/s) | 12.94 (w: -1.2 m/s) | 12.96 (w: -0.5 m/s) | 13.16 (w: -0.3 m/s) | q | |||
| 6 | align=left | align=left | | x | 13.12 (w: -0.4 m/s) | 13.04 (w: 0.0 m/s) | 13.12 (w: -0.4 m/s) | q | ||
| 7 | align=left | align=left |  | 12.44 (w: -0.3 m/s) | 12.53 (w: -0.3 m/s) | 12.85 (w: -0.6 m/s) | 12.85 (w: -0.6 m/s) | |||
| 8 | align=left | align=left | | 12.79 (w: -0.3 m/s) | x | 12.80 (w: -0.2 m/s) | 12.80 (w: -0.2 m/s) | |||
| 9 | align=left | align=left | 12.45 (w: -0.6 m/s) | 12.47 (w: -0.3 m/s) | 12.79 (w: -0.5 m/s) | 12.79 (w: -0.5 m/s) | ||||
| 10 | align=left | align=left | | 12.51 (w: -0.3 m/s) | x | 12.40 (w: -0.4 m/s) | 12.51 (w: -0.3 m/s) | |||
| 11 | align=left | align=left |  | 12.37 (w: -0.6 m/s) | 12.27 (w: -0.8 m/s) | 12.37 (w: -0.1 m/s) | 12.37 (w: -0.6 m/s) | |||
| 12 | align=left | align=left |  | 12.36 (w: -0.4 m/s) | 12.35 (w: -0.1 m/s) | 12.09 (w: -0.6 m/s) | 12.36 (w: -0.4 m/s) | |||
| 13 | align=left | align=left | | x | 12.09 (w: -0.6 m/s) | 12.10 (w: -0.2 m/s) | 12.10 (w: -0.2 m/s) | |||
| align=left | align=left | | x | x | x | NM | ||||
According to an unofficial count, 29 athletes from 19 countries participated in the event.