| Event: | Men's 1500 metres |
| Competition: | 2018 World U20 Championships |
| Venue: | Ratina Stadium |
| Dates: | 10 and 12 July |
| Competitors: | 37 |
| Nations: | 27 |
| Win Label: | Winning time |
| Win Value: | 3:41.71 |
| Gold: | George Meitamei Manangoi |
| Goldnoc: | KEN |
| Silver: | Jakob Ingebrigtsen |
| Silvernoc: | NOR |
| Bronze: | Justus Soget |
| Bronzenoc: | KEN |
| Prev: | 2016 |
| Next: | 2021 |
The men's 1500 metres at the 2018 IAAF World U20 Championships was held at Ratina Stadium on 10 and 12 July.[1]
| Standing records prior to the 2018 IAAF World U20 Championships in Athletics | |||||
|---|---|---|---|---|---|
| World U20 Record | 3:28.81 | Monaco | 18 July 2014 | ||
| Championship Record | 3:35.53 | Grosseto, Italy | 15 July 2004 | ||
| World U20 Leading | 3:31.63 | Shanghai, China | 12 May 2018 | ||
Qualification: First 3 of each heat (Q) and the 3 fastest times (q) qualified for the final.[2]
| Rank | Heat | Name | Nationality | Time | Note | ||
|---|---|---|---|---|---|---|---|
| 1 | 3 | align=left |  | 3:44.48 | Q | ||
| 2 | 3 | align=left |  | 3:44.68 | Q, | ||
| 3 | 2 | align=left |  | 3:44.70 | Q | ||
| 4 | 2 | align=left | | 3:44.92 | Q | ||
| 5 | 2 | align=left |  | 3:45.06 | Q | ||
| 6 | 3 | align=left |  | 3:45.45 | Q | ||
| 7 | 2 | align=left | 3:45.52 | q | |||
| 8 | 2 | align=left |  | 3:45.64 | q | ||
| 9 | 3 | align=left |  | 3:46.32 | q, | ||
| 10 | 3 | align=left |  | 3:46.66 | |||
| 11 | 3 | align=left |  | 3:46.66 | |||
| 12 | 2 | align=left |  | 3:46.68 | |||
| 13 | 2 | align=left |  | 3:47.10 | |||
| 14 | 2 | align=left | | 3:47.77 | |||
| 15 | 3 | align=left | 3:47.96 | ||||
| 16 | 3 | align=left | | 3:49.68 | |||
| 17 | 1 | align=left | | 3:51.34 | Q | ||
| 18 | 1 | align=left | | 3:51.40 | Q | ||
| 19 | 3 | align=left | 3:51.92 | ||||
| 20 | 1 | align=left | 3:52.33 | Q | |||
| 21 | 3 | align=left | | 3:52.42 | |||
| 22 | 1 | align=left | | 3:52.70 | |||
| 23 | 1 | align=left |  | 3:53.06 | |||
| 24 | 1 | align=left |  | 3:54.02 | |||
| 25 | 2 | align=left |  | 3:54.09 | |||
| 26 | 1 | align=left |  | 3:54.46 | |||
| 27 | 3 | align=left | 3:54.62 | ||||
| 28 | 1 | align=left | | 3:54.90 | |||
| 29 | 1 | align=left | 3:55.33 | ||||
| 30 | 2 | align=left | | 3:55.47 | |||
| 31 | 1 | align=left | 3:55.56 | ||||
| 32 | 1 | align=left |  | 3:55.92 | |||
| 33 | 1 | align=left |  | 3:56.55 | |||
| 34 | 2 | align=left | 3:58.32 | ||||
| 35 | 1 | align=left | 3:59.63 | ||||
| 36 | 3 | align=left |  | 4:05.15 | |||
| 37 | 3 | align=left | 4:07.91 | ||||
| 38 | 2 | align=left |  | 4:09.15 | |||
| 2 | align=left |  |
| Rank | Name | Nationality | Time | Note | ||
|---|---|---|---|---|---|---|
| align=left | | 3:41.71 | ||||
| align=left | | 3:41.89 | ||||
| align=left | | 3:42.14 | ||||
| 4 | align=left | | 3:43.76 | |||
| 5 | align=left | | 3:43.91 | |||
| 6 | align=left | | 3:44.65 | |||
| 7 | align=left | 3:45.17 | ||||
| 8 | align=left | | 3:45.40 | |||
| 9 | align=left | | 3:45.47 | |||
| 10 | align=left | | 3:46.18 | |||
| 11 | align=left | | 3:46.35 | |||
| 12 | align=left | 3:48.65 |