List of world cups and world championships for juniors and youth Men Men

| Sport | Competition_name | Competing_entities | Age_groups | Held_every |
|---|---|---|---|---|
| Rugby union | Under 19 Rugby World Championship | Nations | 19 or younger | Year |
| Rugby union | Under 21 Rugby World Championship | Nations | 21 or younger | Year |
| Speed skating | World Junior Speed Skating Championships | Individuals and Nations | 19 or younger | One year |
| Speed skating | ISU Junior World Cup Speed Skating | Individuals and Nations | 19 or younger | One year |
| Sailing | ISAF Youth Sailing World Championships | Nations | Under 19`s | annually |
| Sailing | ISAF Classes World Championship | Held in the Optimist, Splash, Zoom, RS Tera etc. | 19 or younger | Various |
| Table tennis | World Junior Table Tennis Championships | Individuals [D ] and Nations | 18 or younger | One year |
| Volleyball | Men`s Junior Volleyball World Championship | Nations | 21 or younger | Two years |
| Volleyball | Boys Youth Volleyball World Championship | Nations | 19 or younger | Two years |