Aliases
| Name | Aliases |
|---|---|
| Leo | Boss (ボス) |
| Leo | The Lion |
| Leo | Leon |
| Leo | Kimba |
| Leo Akaba | Reo Akaba |
| Leo Amachi | Reo Amachi |
| Leo Crawford | Leo Crawford |
| Leo Tsushima | Reo Tsushima |
| Leomon X | Leomon X-Antibody |
| Leon | Leonhart |
| Leon | Dande |
| Leon | Reon |
| Leon | Ryan |
| Leon Kuwata | Ultimate Baseball Star |
| Leon Oswald | Angel of death |
| Leon Strohl | Leon Strohl da Haliaetus |
| Leona | Reona |
| Leonard L. Church | Church |
| Leonardo | Hyouta |
| Leonardo Burns | Leonard Burns |
| Leonardo da Vinci | Caster |
| Leonidas I | Lancer |
| Leopard | Doronjo (ドロンジョ) |
| Leopold | Teacher |
| Leorgis | Reorugisu |
| Leoville Barton | Reoviru Baruton |
| Lepre | Migiri (ミギリ) |
| Leprechaun | T-3 Leprechaun |
| Lera | Dora |
| Lero-Ro | (Korean) 레로- 로 |