The men's decathlon event at the 2003 European Athletics U23 Championships was held in Bydgoszcz, Poland, at Zawisza Stadion on 17 and 18 July.
| Gold | André Niklaus | |
| Silver | Indrek Turi | |
| Bronze | Atis Vaisjūns |
17-18 July
| Rank | Name | Nationality | 100m | LJ | SP | HJ | 400m | 110m H | DT | PV | JT | 1500m | Points | Notes | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| align=left | align=left | 11.24 (w: 0.8 m/s) | 7.14 (w: 0.8 m/s) | 13.28 | 2.03 | 50.18 | 14.54 (w: 1.6 m/s) | 43.06 | 5.00 | 59.13 | 4:30.90 | 7983 | |||||
| align=left | align=left | | 11.29 (w: 0.3 m/s) | 6.80 (w: 0.0 m/s) | 13.87 | 2.06 | 50.54 | 14.44 (w: 1.6 m/s) | 39.69 | 5.00 | 60.59 | 4:37.14 | 7864 | ||||
| align=left | align=left | 11.29 (w: 1.0 m/s) | 7.08 (w: 0.3 m/s) | 13.46 | 2.03 | 49.87 | 15.12 (w: 1.2 m/s) | 40.57 | 4.60 | 58.48 | 4:38.72 | 7681 | |||||
| 4 | align=left | align=left | 11.24 (w: 0.8 m/s) | 7.07 (w: 0.9 m/s) | 15.49 | 1.94 | 51.91 | 15.21 (w: -2.1 m/s) | 41.71 | 4.50 | 59.73 | 4:41.04 | 7627 | ||||
| 5 | align=left | align=left | 10.79 (w: 0.3 m/s) | 7.22 (w: -0.3 m/s) | 11.48 | 1.91 | 47.76 | 14.94 (w: -2.1 m/s) | 36.04 | 4.50 | 55.90 | 4:30.10 | 7615 | ||||
| 6 | align=left | align=left |  | 11.23 (w: 1.0 m/s) | 7.07 (w: -0.6 m/s) | 13.72 | 1.88 | 49.90 | 14.40 (w: 1.6 m/s) | 40.18 | 4.20 | 58.59 | 4:35.08 | 7560 | |||
| 7 | align=left | align=left | 10.92 (w: 1.0 m/s) | 7.12 (w: 0.1 m/s) | 12.86 | 1.97 | 49.82 | 15.05 (w: -2.1 m/s) | 38.27 | 4.30 | 49.96 | 4:37.48 | 7436 | ||||
| 8 | align=left | align=left |  | 11.30 (w: 0.8 m/s) | 6.92 (w: -0.5 m/s) | 14.47 | 1.97 | 51.74 | 15.73 (w: 1.2 m/s) | 44.01 | 4.30 | 49.26 | 4:36.90 | 7348 | |||
| 9 | align=left | align=left | 10.92 (w: 1.0 m/s) | 7.42 (w: -0.1 m/s) | 13.33 | 2.00 | 51.17 | 14.34 (w: 1.6 m/s) | 40.34 | 4.60 | 39.93 | 5:17.81 | 7339 | ||||
| 10 | align=left | align=left |  | 11.23 (w: 0.8 m/s) | 7.06 (w: -0.3 m/s) | 13.25 | 2.00 | 50.67 | 15.18 (w: -2.1 m/s) | 39.01 | 4.10 | 50.40 | 4:35.33 | 7329 | |||
| 11 | align=left | align=left | | 10.88 (w: 0.3 m/s) | 6.96 (w: -0.1 m/s) | 11.98 | 1.82 | 47.61 | 15.70 (w: 1.2 m/s) | 40.58 | 4.10 | 51.23 | 4:35.84 | 7271 | |||
| 12 | align=left | align=left | 11.12 (w: 0.8 m/s) | 6.94 (w: -0.2 m/s) | 10.44 | 2.15 | 49.40 | 15.01 (w: 1.6 m/s) | 36.67 | 4.30 | 35.08 | 4:36.26 | 7153 | ||||
| 13 | align=left | align=left |  | 11.13 (w: 0.3 m/s) | 6.56 (w: 0.0 m/s) | 12.02 | 1.91 | 50.95 | 14.82 (w: -2.1 m/s) | 44.11 | 4.40 | 48.37 | 4:56.76 | 7140 | |||
| 14 | align=left | align=left | | 11.32 (w: 0.3 m/s) | 6.94 (w: -1.1 m/s) | 12.16 | 1.94 | 49.36 | 15.47 (w: 1.2 m/s) | 32.91 | 4.30 | 44.94 | 4:27.06 | 7095 | |||
| 15 | align=left | align=left |  | 11.35 (w: 0.8 m/s) | NM | 14.89 | 2.03 | 50.97 | 15.35 (w: 1.2 m/s) | 43.22 | 4.70 | 66.05 | 4:39.61 | 7037 | |||
| 16 | align=left | align=left |  | 11.08 (w: 1.0 m/s) | 7.03 (w: 0.2 m/s) | 13.16 | 1.91 | 51.46 | 14.92 (w: 1.2 m/s) | 47.13 | NM | 52.84 | 6114 | ||||
| align=left | align=left |  | 11.52 (w: 0.3 m/s) | 6.95 (w: -0.1 m/s) | 13.56 | 1.85 | 51.16 | 15.89 (w: 1.2 m/s) | 45.45 | 4.20 | DNF | ||||||
| align=left | align=left |  | 11.20 (w: 1.0 m/s) | 7.29 (w: 0.5 m/s) | 13.62 | 2.00 | 49.11 | 15.14 (w: -2.1 m/s) | NM | DNF | |||||||
| align=left | align=left | | 11.37 (w: 0.3 m/s) | 7.01 (w: 0.0 m/s) | 13.29 | 1.82 | 52.99 | 14.98 (w: 1.6 m/s) | NM | DNF |
According to an unofficial count, 19 athletes from 13 countries participated in the event.
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