2021 World Athletics U20 Championships – Men's hammer throw

The men's hammer throw at the 2021 World Athletics U20 Championships was held at the Kasarani Stadium on 18 and 20 August.

Qualification
The qualification took place on 18 August, in two groups, with Group A starting at 09:08 and Group B starting at 10:36. Athletes attaining a mark of at least 74.00 metres ( Q ) or at least the 12 best performers ( q ) qualified for the final.

Final
The final was held on 20 August at 16:17.