2010 World Junior Championships in Athletics – Men's hammer throw
The men's hammer throw at the 2010 World Junior Championships in Athletics was held at the Moncton 2010 Stadium on 23 & 25 July. The final was won by American Conor McCullough. A six-kilogram ball was used throughout the competition.Medalists
Records
Prior to the competition, the existing world junior and championship records were as follows.
| Name | Nationality | Distance | Location | Date |
| World junior record | Javier Cienfuegos |  Spain | 82.97 | Madrid | June 17, 2009 |
| Championship record | Yevgeniy Aydamirov |  Russia | 78.42 | Beijing | August 28, 2006 |
The following records were established during the competition:
| Date | Round | Name | Nationality | Distance | WJR | CR |
| July 25 | Final | Conor McCullough |  United States | 80.79 | | CR |
Results
Final
25 July
Key: CR = Championship record, NJR = National junior record, PB = Personal bestQualifications
23 JulyGroup A
Group B
Participation
According to an unofficial count, 34 athletes from 27 countries participated in the event.
