The men's shot put event at the 2010 World Junior Championships in Athletics was held in Moncton, New Brunswick, Canada, at Moncton Stadium on 21 July. A 6 kg (junior implement) shot was used.
| Gold | Jacko Gill | |
| Silver | Božidar Antunović | |
| Bronze | Ding Yongheng |
21 July
| Rank | Name | Nationality | Attempts | Result | Notes | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 | ||||||||
| align=left | align=left | | 20.24 | 20.76 | 19.54 | x | 19.45 | x | 20.76 | ||||
| align=left | align=left | | 19.90 | 19.87 | 19.64 | 20.20 | 20.16 | 20.10 | 20.20 | ||||
| align=left | align=left | | 19.69 | 20.14 | x | x | 19.67 | x | 20.14 | ||||
| 4 | align=left | align=left |  | 19.05 | 19.54 | x | 19.05 | x | 19.72 | 19.72 | |||
| 5 | align=left | align=left | | 18.65 | 18.66 | 19.17 | 18.95 | 18.91 | x | 19.17 | |||
| 6 | align=left | align=left |  | x | 18.68 | x | 18.62 | 19.03 | 18.95 | 19.03 | |||
| 7 | align=left | align=left |  | 18.58 | 18.45 | 17.64 | 17.99 | x | 18.49 | 18.58 | |||
| 8 | align=left | align=left |  | 18.26 | 18.49 | 18.41 | 18.09 | x | x | 18.49 | |||
| 9 | align=left | align=left | 15.19 | x | 18.45 | 18.45 | |||||||
| 10 | align=left | align=left |  | 18.44 | 18.19 | 18.42 | 18.44 | ||||||
| align=left | align=left | | x | x | x | NM | |||||||
| align=left | align=left |  | x | 17.95 | 17.69 | DQ | IAAF rule 32.2 | ||||||
21 July
| Rank | Name | Nationality | Attempts | Result | Notes | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | |||||||||
| 1 | align=left | align=left | | 19.90 | - | - | 19.90 | Q | |||
| 2 | align=left | align=left | | 19.36 | - | - | 19.36 | Q | |||
| 3 | align=left | align=left | | x | x | 19.28 | 19.28 | Q | |||
| 4 | align=left | align=left | | 17.41 | 18.65 | 18.98 | 18.98 | q | |||
| 5 | align=left | align=left | | 18.30 | 18.87 | 17.89 | 18.87 | q | |||
| 6 | align=left | align=left | 17.94 | x | 18.87 | 18.87 | q | ||||
| 7 | align=left | align=left |  | x | 16.83 | 17.60 | 17.60 | ||||
| 8 | align=left | align=left |  | 16.20 | 16.26 | 17.44 | 17.44 | ||||
| 9 | align=left | align=left |  | 15.72 | 17.30 | x | 17.30 | ||||
| 10 | align=left | align=left |  | 17.08 | 17.16 | 17.27 | 17.27 | ||||
| 11 | align=left | align=left |  | 17.09 | 16.80 | x | 17.09 | ||||
| 12 | align=left | align=left | x | 16.72 | 16.82 | 16.82 | |||||
| align=left | align=left |  | x | x | x | NM | |||||
| align=left | align=left |  | x | x | x | NM | |||||
| align=left | align=left | | 17.97 | 18.66 | 19.09 | bgcolor=pink | DQ | IAAF rule 32.2 q | |||
| Rank | Name | Nationality | Attempts | Result | Notes | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | ||||||||
| 1 | align=left | align=left | | 20.10 | - | - | 20.10 | Q | ||
| 2 | align=left | align=left | | 19.43 | - | - | 19.43 | Q | ||
| 3 | align=left | align=left | | x | 19.40 | - | 19.40 | Q | ||
| 4 | align=left | align=left | | 18.93 | x | x | 18.93 | q | ||
| 5 | align=left | align=left | | 18.76 | 18.90 | 18.25 | 18.90 | q | ||
| 6 | align=left | align=left | | x | 18.74 | 18.32 | 18.74 | |||
| 7 | align=left | align=left | | 17.69 | 17.76 | 18.33 | 18.33 | |||
| 8 | align=left | align=left | | 18.25 | 17.69 | 18.03 | 18.25 | |||
| 9 | align=left | align=left | 16.45 | 18.16 | x | 18.16 | ||||
| 10 | align=left | align=left | | 17.92 | 16.85 | 17.63 | 17.92 | |||
| 11 | align=left | align=left | 17.01 | 17.73 | x | 17.73 | ||||
| 12 | align=left | align=left |  | 17.14 | 17.20 | 17.06 | 17.20 | |||
| 13 | align=left | align=left |  | 15.98 | x | 16.94 | 16.94 | |||
| 14 | align=left | align=left |  | 16.51 | x | 16.18 | 16.51 | |||
| 15 | align=left | align=left | | x | x | 16.36 | 16.36 | |||
According to an unofficial count, 30 athletes from 23 countries participated in the event.