The men's hammer throw event at the 1990 World Junior Championships in Athletics was held in Plovdiv, Bulgaria, at Deveti Septemvri Stadium on 11 August.[1] A 7257g (senior implement) hammer was used.
| Gold | Andrey Debeliy | |
| Silver | Savvas Saritzoglou | |
| Bronze | Andrey Budykin |
11 August
| Rank | Name | Nationality | Attempts | Result | Notes | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 | ||||||||
| align=left | align=left | 67.62 | 68.02 | x | 63.60 | 65.72 | 70.60 | 70.60 | |||||
| align=left | align=left | 67.68 | 69.44 | x | 68.84 | 70.32 | x | 70.32 | |||||
| align=left | align=left | 66.40 | x | 68.08 | 68.94 | 69.10 | 69.36 | 69.36 | |||||
| 4 | align=left | align=left | 65.54 | x | x | 65.64 | 60.54 | 67.66 | 67.66 | ||||
| 5 | align=left | align=left | 65.10 | 65.52 | 62.88 | x | 66.32 | 67.24 | 67.24 | ||||
| 6 | align=left | align=left |  | 64.00 | x | x | 63.02 | 62.12 | 63.22 | 64.00 | |||
| 7 | align=left | align=left | 61.22 | 62.60 | x | 58.46 | 59.80 | x | 62.60 | ||||
| 8 | align=left | align=left |  | x | 59.58 | 62.38 | x | 62.16 | x | 62.38 | |||
| 9 | align=left | align=left | 61.42 | 57.88 | 60.74 | 61.42 | |||||||
| 10 | align=left | align=left |  | 58.42 | x | 60.00 | 60.00 | ||||||
| 11 | align=left | align=left |  | 56.62 | x | 56.20 | 56.62 | ||||||
| 12 | align=left | align=left |  | x | 56.34 | x | 56.34 | ||||||
| 13 | align=left | align=left | | 51.36 | 55.72 | x | 55.72 | ||||||
According to an unofficial count, 13 athletes from 9 countries participated in the event.