The men's 1500 metres event at the 2008 World Junior Championships in Athletics was held in Bydgoszcz, Poland, at Zawisza Stadium on 8 and 10 July.
| Gold | Imad Touil | |
| Silver | James Magut | |
| Bronze | Demma Daba |
10 July
| Rank | Name | Nationality | Time | Notes | |||
|---|---|---|---|---|---|---|---|
| align=left | align=left | 3:47.40 | |||||
| align=left | align=left | | 3:47.51 | ||||
| align=left | align=left | | 3:47.65 | ||||
| 4 | align=left | align=left | | 3:48.00 | |||
| 5 | align=left | align=left |  | 3:48.23 | |||
| 6 | align=left | align=left |  | 3:49.26 | |||
| 7 | align=left | align=left |  | 3:49.48 | |||
| 8 | align=left | align=left |  | 3:49.59 | |||
| 9 | align=left | align=left | 3:51.00 | ||||
| 10 | align=left | align=left | 3:51.71 | ||||
| 11 | align=left | align=left | 3:51.82 | ||||
| 12 | align=left | align=left |  | 3:53.63 |
8 July
| Rank | Name | Nationality | Time | Notes | |||
|---|---|---|---|---|---|---|---|
| 1 | align=left | align=left | 3:48.86 | Q | |||
| 2 | align=left | align=left | | 3:49.23 | Q | ||
| 3 | align=left | align=left | | 3:49.35 | Q | ||
| 4 | align=left | align=left | 3:49.39 | ||||
| 5 | align=left | align=left | 3:49.71 | ||||
| 6 | align=left | align=left |  | 3:50.44 | |||
| 7 | align=left | align=left | 3:50.77 | ||||
| 8 | align=left | align=left | | 3:50.90 | |||
| 9 | align=left | align=left | | 3:51.44 | |||
| 10 | align=left | align=left |  | 3:55.45 | |||
| 11 | align=left | align=left |  | 3:58.29 | |||
| 12 | align=left | align=left | 4:18.85 |
| Rank | Name | Nationality | Time | Notes | |||
|---|---|---|---|---|---|---|---|
| 1 | align=left | align=left | 3:53.89 | Q | |||
| 2 | align=left | align=left | | 3:54.18 | Q | ||
| 3 | align=left | align=left | | 3:54.64 | Q | ||
| 4 | align=left | align=left | | 3:54.73 | |||
| 5 | align=left | align=left | | 3:55.80 | |||
| 6 | align=left | align=left | | 3:56.25 | |||
| 7 | align=left | align=left | 3:57.55 | ||||
| 8 | align=left | align=left | 3:58.56 | ||||
| 9 | align=left | align=left |  | 4:01.95 | |||
| 10 | align=left | align=left |  | 4:02.80 | |||
| 11 | align=left | align=left |  | 4:05.23 | |||
| 12 | align=left | align=left | 4:07.12 |
| Rank | Name | Nationality | Time | Notes | |||
|---|---|---|---|---|---|---|---|
| 1 | align=left | align=left | | 3:46.41 | Q | ||
| 2 | align=left | align=left | | 3:46.79 | Q | ||
| 3 | align=left | align=left | | 3:46.82 | Q | ||
| 4 | align=left | align=left | 3:47.35 | q | |||
| 5 | align=left | align=left | 3:47.64 | q | |||
| 6 | align=left | align=left | | 3:47.71 | q | ||
| 7 | align=left | align=left | | 3:48.54 | |||
| 8 | align=left | align=left |  | 3:49.02 | |||
| 9 | align=left | align=left | | 3:49.57 | |||
| 10 | align=left | align=left |  | 3:50.82 | |||
| 11 | align=left | align=left | 3:51.82 | ||||
| 12 | align=left | align=left | 3:55.45 |
According to an unofficial count, 36 athletes from 25 countries participated in the event.