The women's long jump event at the 2008 World Junior Championships in Athletics was held in Bydgoszcz, Poland, at Zawisza Stadium on 11 and 12 July.
| Gold | Ivana Španović | |
| Silver | Nastassia Mironchyk | |
| Bronze | Dailenis Alcántara |
12 July
| Rank | Name | Nationality | Attempts | Result | Notes | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 | ||||||||
| align=left | align=left | | 6.33 (w: -0.4 m/s) | x | 6.61 (w: -1.3 m/s) | 6.38 (w: -1.6 m/s) | 6.41 (w: -1.7 m/s) | 6.55 (w: -0.6 m/s) | 6.61 (w: -1.3 m/s) | ||||
| align=left | align=left | | 6.10 (w: -0.8 m/s) | 6.23 (w: -0.6 m/s) | 6.46 (w: -1.3 m/s) | 6.11 (w: -1.3 m/s) | 6.42 (w: -1.5 m/s) | 6.14 (w: -0.1 m/s) | 6.46 (w: -1.3 m/s) | ||||
| align=left | align=left | | 6.05 (w: -1.1 m/s) | 6.24 (w: -2.1 m/s) | 6.32 (w: -1.6 m/s) | 6.30 (w: -1.6 m/s) | x | 6.41 (w: -1.9 m/s) | 6.41 (w: -1.9 m/s) | ||||
| 4 | align=left | align=left | 3.01 (w: -1.0 m/s) | 6.09 (w: -1.3 m/s) | 6.33 (w: -2.2 m/s) | x | x | 6.17 (w: -1.0 m/s) | 6.33 (w: -2.2 m/s) | ||||
| 5 | align=left | align=left | x | 6.17 (w: -2.6 m/s) | 6.22 (w: -0.6 m/s) | 6.31 (w: -1.2 m/s) | 6.09 (w: -1.0 m/s) | 6.30 (w: -1.2 m/s) | 6.31 (w: -1.2 m/s) | ||||
| 6 | align=left | align=left | 5.81 (w: -1.7 m/s) | 6.01 (w: -1.6 m/s) | 6.28 (w: -1.4 m/s) | 6.24 (w: -0.4 m/s) | 6.17 (w: -1.9 m/s) | 5.96 (w: -0.2 m/s) | 6.28 (w: -1.4 m/s) | ||||
| 7 | align=left | align=left |  | x | 6.20 (w: -2.3 m/s) | 4.71 (w: -0.7 m/s) | 6.27 (w: -2.0 m/s) | 6.17 (w: -1.1 m/s) | 6.00 (w: -0.7 m/s) | 6.27 (w: -2.0 m/s) | |||
| 8 | align=left | align=left | 5.95 (w: -0.1 m/s) | 6.16 (w: -1.7 m/s) | x | 3.63 (w: -2.0 m/s) | x | 5.97 (w: -0.8 m/s) | 6.16 (w: -1.7 m/s) | ||||
| 9 | align=left | align=left |  | x | 5.99 (w: -1.0 m/s) | 5.98 (w: -1.1 m/s) | 5.99 (w: -1.0 m/s) | ||||||
| 10 | align=left | align=left |  | 5.87 (w: -0.8 m/s) | 5.92 (w: -1.4 m/s) | 5.83 (w: -1.2 m/s) | 5.92 (w: -1.4 m/s) | ||||||
| 11 | align=left | align=left |  | 5.65 (w: -1.7 m/s) | 5.83 (w: -0.3 m/s) | x | 5.83 (w: -0.3 m/s) | ||||||
| 12 | align=left | align=left |  | 5.76 (w: -0.9 m/s) | x | x | 5.76 (w: -0.9 m/s) | ||||||
11 July
| Rank | Name | Nationality | Attempts | Result | Notes | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | ||||||||
| 1 | align=left | align=left | 6.17 (w: -2.4 m/s) | 6.43 (w: -1.4 m/s) | - | 6.43 (w: -1.4 m/s) | Q | |||
| 2 | align=left | align=left | 6.28 (w: -1.6 m/s) | - | - | 6.28 (w: -1.6 m/s) | Q | |||
| 2 | align=left | align=left | | 6.28 (w: -0.3 m/s) | - | - | 6.28 (w: -0.3 m/s) | Q | ||
| 4 | align=left | align=left | | 6.13 (w: -0.9 m/s) | 6.23 (w: -1.8 m/s) | 6.15 (w: -1.2 m/s) | 6.23 (w: -1.8 m/s) | q | ||
| 5 | align=left | align=left | | 6.12 (w: -1.6 m/s) | 5.66 (w: -2.5 m/s) | 5.83 (w: -1.5 m/s) | 6.12 (w: -1.6 m/s) | q | ||
| 6 | align=left | align=left | | x | 6.10 (w: -2.1 m/s) | 5.91 (w: -2.4 m/s) | 6.10 (w: -2.1 m/s) | q | ||
| 7 | align=left | align=left | | 6.02 (w: -1.6 m/s) | x | 6.05 (w: -0.5 m/s) | 6.05 (w: -0.5 m/s) | q | ||
| 8 | align=left | align=left | x | 6.04 (w: -0.8 m/s) | 5.91 (w: -1.7 m/s) | 6.04 (w: -0.8 m/s) | q | |||
| 9 | align=left | align=left |  | 5.80 (w: -1.1 m/s) | 5.83 (w: -2.1 m/s) | 6.04 (w: -2.0 m/s) | 6.04 (w: -2.0 m/s) | |||
| 10 | align=left | align=left |  | 5.97 (w: -1.7 m/s) | 5.87 (w: -2.5 m/s) | 5.97 (w: -1.4 m/s) | 5.97 (w: -1.7 m/s) | |||
| 11 | align=left | align=left |  | 4.68 (w: -1.6 m/s) | 5.80 (w: -2.7 m/s) | 5.87 (w: -0.9 m/s) | 5.87 (w: -0.9 m/s) | |||
| 12 | align=left | align=left | x | 5.72 (w: -1.9 m/s) | 5.83 (w: -2.1 m/s) | 5.83 (w: -2.1 m/s) | ||||
| Rank | Name | Nationality | Attempts | Result | Notes | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | ||||||||
| 1 | align=left | align=left | | 6.51 (w: -1.7 m/s) | - | - | 6.51 (w: -1.7 m/s) | Q | ||
| 2 | align=left | align=left | 6.03 (w: -1.1 m/s) | 4.50 (w: -1.3 m/s) | 6.19 (w: -2.2 m/s) | 6.19 (w: -2.2 m/s) | q | |||
| 3 | align=left | align=left | | x | 6.08 (w: -2.6 m/s) | x | 6.08 (w: -2.6 m/s) | q | ||
| 4 | align=left | align=left | | 5.99 (w: -0.4 m/s) | 6.05 (w: -2.1 m/s) | 6.05 (w: -1.7 m/s) | 6.05 (w: -2.1 m/s) | q | ||
| 5 | align=left | align=left | 5.92 (w: -3.1 m/s) | x | 5.96 (w: -2.4 m/s) | 5.96 (w: -2.4 m/s) | ||||
| 6 | align=left | align=left |  | 5.88 (w: -3.2 m/s) | x | 5.88 (w: -1.2 m/s) | 5.88 (w: -3.2 m/s) | |||
| 7 | align=left | align=left | | x | 5.67 (w: -1.0 m/s) | 5.82 (w: -1.0 m/s) | 5.82 (w: -1.0 m/s) | |||
| 8 | align=left | align=left | 5.81 (w: -1.5 m/s) | 5.64 (w: -1.8 m/s) | x | 5.81 (w: -1.5 m/s) | ||||
| 9 | align=left | align=left |  | 5.40 (w: -1.5 m/s) | 5.68 (w: -4.3 m/s) | 5.76 (w: -2.3 m/s) | 5.76 (w: -2.3 m/s) | |||
| 10 | align=left | align=left | | 5.70 (w: -1.0 m/s) | x | - | 5.70 (w: -1.0 m/s) | |||
| 11 | align=left | align=left | 5.27 (w: -0.2 m/s) | 5.37 (w: -1.8 m/s) | 5.56 (w: -1.4 m/s) | 5.56 (w: -1.4 m/s) | ||||
| 12 | align=left | align=left | | 5.56 (w: -0.7 m/s) | x | - | 5.56 (w: -0.7 m/s) | |||
According to an unofficial count, 24 athletes from 20 countries participated in the event.