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

| Sport | Competition_name | Competing_entities | Age_groups | Held_every |
|---|---|---|---|---|
| Basketball | FIBA 3x3 U-18 World Championships | Nations | 18 or younger | Year |
| Cricket | U-19 Cricket World Cup | Nations | 19 or younger | Two years |
| Figure skating | World Junior Figure Skating Championships | Individuals | 13-19 | One year |
| Football (soccer) | FIFA U-20 World Cup | Nations | 20 or younger | Two years |
| Football (soccer) | FIFA U-17 World Cup | Nations | 17 or younger | Two years |
| Ice hockey | IIHF World U20 Championship | Nations | 20 or younger | Year |
| Ice hockey | IIHF World U18 Championships | Nations | 18 or younger | Year |
| Lacrosse | Under-19 World Lacrosse Championships | Nations | 19 or younger | Four years |
| Rowing | Junior World Rowing Championships | Nations | 18 or younger | Year |
| Rugby union | IRB Junior World Championship | Nations | 20 or younger | Year |