The men's triple jump event at the 2000 World Junior Championships in Athletics was held in Santiago, Chile, at Estadio Nacional Julio Martínez Prádanos on 19 and 20 October.
| Gold | Marian Oprea | |
| Silver | Yoandri Betanzos | |
| Bronze | Mohd Abdulaziz |
20 October
| Rank | Name | Nationality | Attempts | Result | Notes | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 | ||||||||
| align=left | align=left | | 16.21 (w: +1.3 m/s) | x | 16.32 (w: +0.7 m/s) | 16.25 (w: +0.5 m/s) | x | 16.41 (w: +1.9 m/s) | 16.41 (w: +1.9 m/s) | ||||
| align=left | align=left | | 15.82 (w: -0.1 m/s) | 15.96 (w: +0.4 m/s) | 16.13 (w: +0.2 m/s) | x | 16.19 (w: +1.5 m/s) | 16.34 (w: +0.5 m/s) | 16.34 (w: +0.5 m/s) | ||||
| align=left | align=left | | 15.76 (w: -0.4 m/s) | 15.30 (w: -1.3 m/s) | 16.12 (w: +0.3 m/s) | 15.58 (w: +1.6 m/s) | 16.29 (w: -0.5 m/s) | 14.20 (w: +0.9 m/s) | 16.29 (w: -0.5 m/s) | ||||
| 4 | align=left | align=left |  | 16.10 (w: +0.2 m/s) | 15.37 (w: +0.8 m/s) | x | 15.61 (w: -2.1 m/s) | 15.70 (w: +0.3 m/s) | 16.26 (w: +0.7 m/s) | 16.26 (w: +0.7 m/s) | |||
| 5 | align=left | align=left | 15.74 (w: +0.6 m/s) | x | 16.17 (w: 0.0 m/s) | 16.22 (w: -1.3 m/s) | 15.80 (w: +1.1 m/s) | 16.12 (w: +1.1 m/s) | 16.22 (w: -1.3 m/s) | ||||
| 6 | align=left | align=left |  | 16.13 (w: +0.4 m/s) | 15.52 (w: -0.2 m/s) | x | 15.87 (w: -2.2 m/s) | 15.72 (w: -0.1 m/s) | x | 16.13 (w: +0.4 m/s) | |||
| 7 | align=left | align=left |  | 15.51 (w: -0.1 m/s) | x | 16.10 (w: -0.3 m/s) | 15.94 (w: +1.0 m/s) | 15.92 (w: -0.7 m/s) | 16.05 (w: +0.5 m/s) | 16.10 (w: -0.3 m/s) | |||
| 8 | align=left | align=left | | 15.75 (w: +1.1 m/s) | 15.58 (w: +0.3 m/s) | 16.05 (w: -0.4 m/s) | 14.76 (w: +0.7 m/s) | 15.76 (w: +0.4 m/s) | 15.85 (w: -1.1 m/s) | 16.05 (w: -0.4 m/s) | |||
| 9 | align=left | align=left |  | 15.48 (w: -0.4 m/s) | 16.05 (w: +1.5 m/s) | 15.46 (w: +0.9 m/s) | 16.05 (w: +1.5 m/s) | ||||||
| 10 | align=left | align=left | 15.99 (w: -1.3 m/s) | 15.55 (w: -0.3 m/s) | 15.29 (w: +0.9 m/s) | 15.99 (w: -1.3 m/s) | |||||||
| 11 | align=left | align=left | 15.68 (w: +1.5 m/s) | x | 15.41 (w: +0.9 m/s) | 15.68 (w: +1.5 m/s) | |||||||
| 12 | align=left | align=left |  | 15.46 (w: +1.4 m/s) | 13.67 (w: -0.4 m/s) | 15.65 (w: -0.9 m/s) | 15.65 (w: -0.9 m/s) | ||||||
19 October
| Rank | Name | Nationality | Attempts | Result | Notes | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | ||||||||
| 1 | align=left | align=left | 16.22 (w: +0.5 m/s) | - | - | 16.22 (w: +0.5 m/s) | Q | |||
| 2 | align=left | align=left | | 16.10 (w: +0.3 m/s) | - | - | 16.10 (w: +0.3 m/s) | Q | ||
| 3 | align=left | align=left | | 15.87 (w: +1.5 m/s) | x | 16.02 (w: +0.3 m/s) | 16.02 (w: +0.3 m/s) | q | ||
| 4 | align=left | align=left | | x | x | 15.93 (w: +0.7 m/s) | 15.93 (w: +0.7 m/s) | q | ||
| 5 | align=left | align=left | | 15.72 (w: +1.5 m/s) | 15.86 (w: +0.1 m/s) | 15.78 (w: +0.6 m/s) | 15.86 (w: +0.1 m/s) | q | ||
| 6 | align=left | align=left | 15.25 (w: -0.5 m/s) | 14.92 (w: -0.7 m/s) | 15.58 (w: +0.5 m/s) | 15.58 (w: +0.5 m/s) | ||||
| 7 | align=left | align=left |  | 15.23 (w: -0.6 m/s) | 15.56 (w: +0.3 m/s) | 15.47 (w: +0.6 m/s) | 15.56 (w: +0.3 m/s) | |||
| 8 | align=left | align=left |  | 15.40 (w: +0.5 m/s) | 15.50 (w: 0.0 m/s) | 15.51 (w: +0.6 m/s) | 15.51 (w: +0.6 m/s) | |||
| 9 | align=left | align=left | | x | 15.48 (w: -1.4 m/s) | x | 15.48 (w: -1.4 m/s) | |||
| 10 | align=left | align=left |  | 15.30 (w: +0.4 m/s) | 15.34 (w: +0.9 m/s) | 14.97 (w: -0.1 m/s) | 15.34 (w: +0.9 m/s) | |||
| 11 | align=left | align=left | | 15.11 (w: +0.8 m/s) | 14.43 (w: -1.2 m/s) | x | 15.11 (w: +0.8 m/s) | |||
| 12 | align=left | align=left |  | 14.92 (w: +1.1 m/s) | 14.87 (w: 0.0 m/s) | x | 14.92 (w: +1.1 m/s) | |||
| 13 | align=left | align=left |  | 14.37 (w: +0.2 m/s) | x | 14.26 (w: +0.2 m/s) | 14.37 (w: +0.2 m/s) | |||
| Rank | Name | Nationality | Attempts | Result | Notes | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | ||||||||
| 1 | align=left | align=left | | 16.67 (w: +0.3 m/s) | - | - | 16.67 (w: +0.3 m/s) | Q | ||
| 2 | align=left | align=left | | 16.39 (w: +0.7 m/s) | - | - | 16.39 (w: +0.7 m/s) | Q | ||
| 3 | align=left | align=left | | 16.11 (w: +1.4 m/s) | - | - | 16.11 (w: +1.4 m/s) | Q | ||
| 4 | align=left | align=left | x | 16.00 (w: -0.2 m/s) | 16.02 (w: -0.6 m/s) | 16.02 (w: -0.6 m/s) | q | |||
| 5 | align=left | align=left | | 15.54 (w: +0.9 m/s) | 15.67 (w: -1.5 m/s) | 15.99 (w: +0.9 m/s) | 15.99 (w: +0.9 m/s) | q | ||
| 6 | align=left | align=left | 14.99 (w: +0.6 m/s) | 15.55 (w: +0.2 m/s) | 15.84 (w: 0.0 m/s) | 15.84 (w: 0.0 m/s) | q | |||
| 7 | align=left | align=left | | 14.33 w (w: +2.1 m/s) | 15.50 (w: +0.8 m/s) | 15.81 (w: -0.7 m/s) | 15.81 (w: -0.7 m/s) | q | ||
| 8 | align=left | align=left |  | x | 15.79 (w: -0.8 m/s) | - | 15.79 (w: -0.8 m/s) | |||
| 9 | align=left | align=left |  | 15.35 (w: +0.2 m/s) | x | 14.82 (w: -0.2 m/s) | 15.35 (w: +0.2 m/s) | |||
| 10 | align=left | align=left | 15.25 (w: +0.6 m/s) | x | 15.27 (w: +0.3 m/s) | 15.27 (w: +0.3 m/s) | ||||
| 11 | align=left | align=left |  | 15.11 (w: 0.0 m/s) | 15.22 (w: -0.6 m/s) | 14.87 (w: +0.4 m/s) | 15.22 (w: -0.6 m/s) | |||
| 12 | align=left | align=left | x | 14.71 (w: -0.2 m/s) | x | 14.71 (w: -0.2 m/s) | ||||
| align=left | align=left |  | x | x | x | NM | ||||
According to an unofficial count, 26 athletes from 22 countries participated in the event.