The men's decathlon event at the 2015 European Athletics U23 Championships was held in Tallinn, Estonia, at Kadriorg Stadium on 11 and 12 July.
| Gold | Pieter Braun | |
| Silver | Jorge Ureña | |
| Bronze | Janek Õiglane |
11/12 July
| Rank | Name | Nationality | 100m | LJ | SP | HJ | 400m | 110m H | DT | PV | JT | 1500m | Points | Notes | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| align=left | align=left | 11.04 (w: 0.7 m/s) | 7.38 (w: 1.6 m/s) | 14.19 | 2.01 | 48.02 | 14.13 (w: 0.7 m/s) | 42.69 | 4.90 | 58.55 | 4:36.19 | 8195 | |||||
| align=left | align=left | | 10.94 (w: 1.9 m/s) | 7.47 (w: 1.5 m/s) | 13.43 | 2.04 | 49.26 | 14.13 (w: 0.7 m/s) | 36.93 | 4.60 | 60.87 | 4:36.97 | 7983 | PB | |||
| align=left | align=left | | 11.32 (w: 0.3 m/s) | 7.23 (w: 0.5 m/s) | 14.88 | 2.04 | 51.14 | 14.67 (w: 0.7 m/s) | 40.70 | 4.50 | 69.15 | 4:37.75 | 7945 | PB | |||
| 4 | align=left | align=left |  | 10.94 (w: 0.7 m/s) | 7.52 (w: 0.9 m/s) | 14.31 | 2.01 | 48.30 | 14.35 (w: 0.7 m/s) | 33.51 | 4.60 | 54.21 | 4:35.13 | 7885 | |||
| 5 | align=left | align=left |  | 10.98 (w: 1.9 m/s) | 7.81 (w: 0.8 m/s) | 13.48 | 2.04 | 50.32 | 14.65 (w: 0.6 m/s) | 37.68 | 4.70 | 55.33 | 4:41.23 | 7884 | PB | ||
| 6 | align=left | align=left | | 11.14 (w: 1.9 m/s) | 7.63w (w: 3.2 m/s) | 13.94 | 2.07 | 50.48 | 14.80 (w: 0.6 m/s) | 43.81 | 4.70 | 51.50 | 4:57.10 | 7806 | |||
| 7 | align=left | align=left |  | 10.96 (w: 0.3 m/s) | 7.27 (w: 1.6 m/s) | 13.45 | 1.98 | 49.84 | 14.51 (w: 0.6 m/s) | 37.37 | 4.50 | 62.96 | 4:48.17 | 7743 | PB | ||
| 8 | align=left | align=left |  | 11.17 (w: 0.3 m/s) | 7.23 (w: 1.3 m/s) | 13.52 | 1.86 | 50.74 | 14.68 (w: 0.7 m/s) | 42.85 | 4.90 | 58.10 | 4:48.65 | 7679 | PB | ||
| 9 | align=left | align=left | | 10.97 (w: 0.7 m/s) | 7.08 (w: 0.7 m/s) | 13.54 | 1.89 | 49.27 | 14.95 (w: 0.6 m/s) | 40.45 | 4.50 | 59.35 | 4:45.03 | 7621 | PB | ||
| 10 | align=left | align=left | | 10.99 (w: 0.7 m/s) | 7.11w (w: 2.8 m/s) | 12.76 | 1.92 | 48.86 | 15.16 (w: 0.6 m/s) | 31.34 | 4.10 | 51.71 | 4:47.03 | 7172 | |||
| 11 | align=left | align=left | 11.25 (w: 1.9 m/s) | 6.77 (w: 1.4 m/s) | 11.44 | 1.92 | 51.32 | 15.10 (w: 0.7 m/s) | 35.47 | 4.00 | 49.28 | 4:56.40 | 6810 | ||||
| align=left | align=left | 11.11 (w: 0.3 m/s) | 7.07 (w: 1.3 m/s) | 14.46 | 2.01 | 49.51 | 14.49 (w: 0.7 m/s) | NM | DNF | ||||||||
| align=left | align=left | | 11.10 (w: 0.7 m/s) | 7.16 (w: 1.2 m/s) | 13.52 | 2.01 | 50.86 | DNF | |||||||||
| align=left | align=left |  | 10.99 (w: 1.9 m/s) | 7.57 (w: 0.5 m/s) | 13.94 | NH | DNF | ||||||||||
| align=left | align=left | | 10.83 (w: 0.7 m/s) | NM | 11.69 | 1.86 | DNF | ||||||||||
| align=left | align=left |  | 11.17 (w: 1.9 m/s) | NM | DNF | ||||||||||||
| align=left | align=left |  | 11.52 (w: 0.3 m/s) | DNF |
According to an unofficial count, 17 athletes from 12 countries participated in the event.