IHF Men's U21 Handball World Championship
| Upcoming season or competition: 2025 IHF Men's U21 Handball World Championship  | |
| Sport | Handball | 
|---|---|
| Founded | 1977 | 
| Founder | International Handball Federation | 
| First season | 1977 | 
| No. of teams | 32 | 
| Continents | 6 | 
| Most recent champion(s)  | Germany (3rd title) | 
| Most titles | Soviet Union (5 titles) | 
The IHF Men's U21 Handball World Championship (or the IHF Men's Junior World Championship) is the official competition for men's national handball teams of under-21 years category. It is being organized by the International Handball Federation since 1977. It takes place every two years in odd years.