The men's decathlon event at the 2002 World Junior Championships in Athletics was held in Kingston, Jamaica, at National Stadium on 16 and 17 July. Junior implements (valid until 2005) were used, i.e. 106.7 cm (3'6) (senior implement) hurdles, as well as 6 kg shot and 1.75 kg discus.
| Gold | Leonid Andreyev | |
| Silver | Nadir El Fassi | |
| Bronze | Mikko Halvari |
16/17 July
| Rank | Name | Nationality | 100m | LJ | SP | HJ | 400m | 110m H | DT | PV | JT | 1500m | Points | Notes | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| align=left | align=left | | 10.97 (w: 1.8 m/s) | 6.96 | 14.85 | 2.10 | 50.95 | 15.11 (w: 0.3 m/s) | 41.83 | 4.80 | 52.04 | 4:58.37 | 7693 | ||||
| align=left | align=left | | 11.00 (w: 1.8 m/s) | 7.19 | 14.89 | 2.04 | 50.40 | 15.13 (w: -0.7 m/s) | 38.22 | 4.40 | 49.99 | 4:28.19 | 7677 | ||||
| align=left | align=left | | 10.87 (w: 1.8 m/s) | 6.59 | 14.35 | 1.92 | 50.27 | 16.09 (w: -0.9 m/s) | 51.27 | 4.60 | 54.88 | 4:48.97 | 7587 | ||||
| 4 | align=left | align=left | | 11.06 (w: 1.1 m/s) | 6.86 | 11.28 | 1.95 | 50.35 | 14.58 (w: 0.3 m/s) | 42.72 | 4.30 | 55.31 | 4:51.42 | 7349 | |||
| 5 | align=left | align=left |  | 11.31 (w: 1.8 m/s) | 6.77 | 13.22 | 2.01 | 52.41 | 15.80 (w: -0.9 m/s) | 38.91 | 4.50 | 57.72 | 4:44.21 | 7269 | |||
| 6 | align=left | align=left |  | 11.20 (w: 1.8 m/s) | 6.82 | 14.16 | 1.92 | 50.62 | 14.92 (w: -0.7 m/s) | 43.68 | 3.90 | 48.79 | 4:46.15 | 7245 | |||
| 7 | align=left | align=left | 10.75 (w: 1.8 m/s) | 6.92 | 13.62 | 1.86 | 48.73 | 15.38 (w: -0.7 m/s) | 33.79 | 3.80 | 50.13 | 4:26.51 | 7235 | ||||
| 8 | align=left | align=left | 11.36 (w: 1.1 m/s) | 6.52 | 13.94 | 1.83 | 50.23 | 16.30 (w: -0.9 m/s) | 42.22 | 4.40 | 53.40 | 4:29.16 | 7195 | ||||
| 9 | align=left | align=left |  | 11.54 (w: 1.8 m/s) | 6.88 | 14.70 | 1.92 | 52.89 | 15.95 (w: 0.3 m/s) | 43.33 | 4.20 | 53.98 | 4:47.66 | 7142 | |||
| 10 | align=left | align=left | | 11.35 (w: 1.1 m/s) | 6.69 | 15.20 | 1.83 | 50.39 | 16.52 (w: -0.7 m/s) | 43.46 | 3.90 | 48.62 | 4:39.46 | 7029 | |||
| 11 | align=left | align=left |  | 10.99 (w: 1.8 m/s) | 6.91 | 11.06 | 1.89 | 49.62 | 15.13 (w: -0.7 m/s) | 36.61 | 3.80 | 46.36 | 4:33.41 | 6990 | |||
| 12 | align=left | align=left |  | 10.99 (w: 1.8 m/s) | 7.27 | 13.59 | 2.04 | 50.82 | 15.06 (w: -0.9 m/s) | DNS | 4.60 | 45.51 | 4:34.48 | 6930 | |||
| 13 | align=left | align=left |  | 10.80 (w: 1.8 m/s) | 7.14 | 11.64 | 1.80 | 49.65 | 15.13 (w: 0.3 m/s) | 35.28 | 3.90 | 40.57 | 4:42.76 | 6902 | |||
| 14 | align=left | align=left |  | 11.43 (w: 1.8 m/s) | 6.66 | 13.19 | 1.80 | 51.28 | 15.39 (w: -0.9 m/s) | 39.32 | 3.90 | 51.59 | 4:43.92 | 6876 | |||
| 15 | align=left | align=left | 11.49 (w: 1.1 m/s) | 6.39 | 14.16 | 1.86 | 52.58 | 15.18 (w: 0.3 m/s) | 33.83 | 4.40 | 48.62 | 4:50.32 | 6829 | ||||
| 16 | align=left | align=left | | 11.37 (w: 1.8 m/s) | 6.64 | 14.88 | 1.86 | 50.85 | 15.49 (w: -0.9 m/s) | 43.25 | DNS | 52.39 | 4:59.24 | 6456 | |||
| 17 | align=left | align=left | | 11.08 (w: 1.1 m/s) | 6.96 | 14.01 | 1.86 | 52.32 | 15.69 (w: 0.3 m/s) | 38.46 | DNS | 48.42 | DNS | 5732 | |||
| align=left | align=left | 11.22 (w: 1.8 m/s) | 6.55 | DNS | 1.83 | 50.16 | 15.65 (w: -0.7 m/s) | 32.78 | DNS | DNS | DNS | DNF | |||||
| align=left | align=left |  | 11.80 (w: 1.1 m/s) | 5.84 | 13.79 | 1.80 | DNS | DNS | DNS | DNS | DNS | DNS | DNF | ||||
| align=left | align=left |  | 11.21 (w: 1.1 m/s) | 6.51 | DNS | DNS | DNS | DNS | DNS | DNS | DNS | DNS | DNF |
According to an unofficial count, 20 athletes from 15 countries participated in the event.