| Robertina | | - | Italian, Spanish | |
| Roberto | | ro-BER-to (Italian, Spanish) | Italian, Spanish, Portuguese | |
| Roberts | | - | Latvian | |
| Robi | | - | Hungarian | |
| Roc | | RAWK | Catalan | |
| RocÍO | | ro-THEE-o (Spanish), ro-SEE-o (Latin American Spanish) | Spanish | |
| Rocco | | ROK-ko (Italian) | Italian, Ancient Germanic | |
| Rochus | | - | German, Dutch, Ancient Germanic (Latinized) | |
| Roderic | | - | Catalan | |
| Rodica | | ro-DEE-kah | Romanian | |
| Rodion | | rah-dee-ON | Russian | |
| Rodolf | | RO-dawlf (German) | German (Rare), Dutch (Rare) | |
| Rodolfito | | - | Spanish | |
| Rodolfo | | - | Italian, Spanish, Portuguese | |
| Rodrigo | | ro-DREE-go (Spanish, Italian), roo-DREE-goo (Portuguese) | Spanish, Portuguese, Italian, Galician | |