The men's hammer throw event at the 2002 World Junior Championships in Athletics was held in Kingston, Jamaica, at National Stadium on 16 and 17 July. A 6 kg (junior implement) hammer was used.
| Gold | Werner Smit | |
| Silver | Ali Al-Zinkawi | |
| Bronze | Aleksandr Kazulka |
17 July
| Rank | Name | Nationality | Attempts | Result | Notes | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 | ||||||||
| align=left | align=left | 74.63 | x | 76.43 | 73.74 | 73.39 | 76.03 | 76.43 | |||||
| align=left | align=left | 73.69 | x | x | x | 70.02 | x | 73.69 | |||||
| align=left | align=left | | x | 72.72 | x | x | x | x | 72.72 | ||||
| 4 | align=left | align=left |  | 71.48 | 71.22 | 71.26 | x | 69.48 | x | 71.48 | |||
| 5 | align=left | align=left |  | 71.26 | x | x | 61.87 | x | 70.23 | 71.26 | |||
| 6 | align=left | align=left |  | x | x | 71.22 | x | x | 64.60 | 71.22 | |||
| 7 | align=left | align=left |  | 65.95 | 70.47 | 69.33 | 69.69 | x | 50.63 | 70.47 | |||
| 8 | align=left | align=left |  | x | 70.42 | 66.49 | 70.38 | 66.38 | 70.03 | 70.42 | |||
| 9 | align=left | align=left | | 69.65 | 65.42 | x | 69.65 | ||||||
| 10 | align=left | align=left |  | 67.07 | x | 68.34 | 68.34 | ||||||
| 11 | align=left | align=left | 66.44 | 66.10 | 64.99 | 66.44 | |||||||
| 12 | align=left | align=left | | x | x | 66.07 | 66.07 | ||||||
16 Jul
| Rank | Name | Nationality | Attempts | Result | Notes | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | ||||||||
| 1 | align=left | align=left | 73.42 | - | - | 73.42 | Q | |||
| 2 | align=left | align=left | | 70.47 | - | - | 70.47 | Q | ||
| 3 | align=left | align=left | | 68.34 | x | 69.59 | 69.59 | q | ||
| 4 | align=left | align=left | | 69.49 | 68.74 | 68.37 | 69.49 | q | ||
| 5 | align=left | align=left | 67.52 | x | 66.09 | 67.52 | q | |||
| 6 | align=left | align=left | | 66.40 | x | x | 66.40 | q | ||
| 7 | align=left | align=left | x | 63.90 | x | 63.90 | ||||
| 8 | align=left | align=left |  | 60.41 | x | 62.45 | 62.45 | |||
| 9 | align=left | align=left | 62.05 | x | x | 62.05 | ||||
| 10 | align=left | align=left | x | x | 58.42 | 58.42 | ||||
| align=left | align=left |  | x | x | x | NM | ||||
| align=left | align=left | x | x | x | NM | |||||
| Rank | Name | Nationality | Attempts | Result | Notes | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | ||||||||
| 1 | align=left | align=left | | x | 75.01 | - | 75.01 | Q | ||
| 2 | align=left | align=left | 73.95 | - | - | 73.95 | Q | |||
| 3 | align=left | align=left | | 71.82 | - | - | 71.82 | Q | ||
| 4 | align=left | align=left | | 71.44 | - | - | 71.44 | Q | ||
| 5 | align=left | align=left | | x | x | 71.10 | 71.10 | Q | ||
| 6 | align=left | align=left | | 70.63 | - | - | 70.63 | Q | ||
| 7 | align=left | align=left | x | 63.75 | 65.74 | 65.74 | ||||
| 8 | align=left | align=left |  | x | 63.27 | 65.37 | 65.37 | |||
| 9 | align=left | align=left | | x | 64.43 | x | 64.43 | |||
| 10 | align=left | align=left | 63.63 | 62.79 | 61.42 | 63.63 | ||||
| 11 | align=left | align=left |  | x | x | 61.95 | 61.95 | |||
| align=left | align=left | x | x | x | NM | |||||
According to an unofficial count, 24 athletes from 18 countries participated in the event.