The men's 20 kilometres walk event at the 2015 European Athletics U23 Championships was held in Tallinn, Estonia, on 10 July.
| Gold | Nikolay Markov | |
| Silver | Álvaro Martín | |
| Bronze | Pavel Parshin |
10 July
| Rank | Name | Nationality | Time | Notes | |||
|---|---|---|---|---|---|---|---|
| align=left | align=left | | 1:23:49 | ||||
| align=left | align=left | | 1:24:51 | ||||
| align=left | align=left | | 1:25:26 | ||||
| 4 | align=left | align=left |  | 1:25:46 | PB | ||
| 5 | align=left | align=left | | 1:26:19 | |||
| 6 | align=left | align=left | 1:26:30 | ||||
| 7 | align=left | align=left |  | 1:26:41 | |||
| 8 | align=left | align=left | | 1:27:13 | |||
| 9 | align=left | align=left | | 1:27:17 | |||
| 10 | align=left | align=left | 1:28:04 | ||||
| 11 | align=left | align=left | | 1:28:20 | |||
| 12 | align=left | align=left | 1:29:16 | PB | |||
| 13 | align=left | align=left | 1:30:25 | ||||
| 14 | align=left | align=left |  | 1:30:39 | |||
| 15 | align=left | align=left |  | 1:31:34 | |||
| 16 | align=left | align=left |  | 1:31:49 | |||
| 17 | align=left | align=left |  | 1:32:08 | |||
| 18 | align=left | align=left | 1:32:28 | ||||
| 19 | align=left | align=left | 1:33:20 | ||||
| 20 | align=left | align=left |  | 1:35:09 | |||
| 21 | align=left | align=left | | 1:42:48 | |||
| align=left | align=left | | DQ | ||||
| align=left | align=left | | DQ | ||||
| align=left | align=left | | DQ | ||||
| align=left | align=left | | DNF |
According to an unofficial count, 25 athletes from 12 countries participated in the event.