| Rochus | | - | German, Dutch, Ancient Germanic (Latinized) | |
| Roddy | | RAH-dee (English) | English, Scottish | |
| Roderic | | - | Catalan | |
| Roderick | | RAHD-ə-rik (English), RAHD-rik (English) | English, Scottish, Welsh | |
| Rodina | | - | Scottish | |
| Rodolf | | RO-dawlf (German) | German (Rare), Dutch (Rare) | |
| Rodolph | | - | English (Rare), French (Rare) | |
| Rodolphe | | - | French | |
| Rodrigo | | ro-DREE-go (Spanish, Italian), roo-DREE-goo (Portuguese) | Spanish, Portuguese, Italian, Galician | |
| Rodrigue | | - | French | |
| Roel | | ROOL | Dutch | |
| Roeland | | ROO-lahnt | Dutch | |
| Roelof | | - | Dutch | |
| Roger | | RAH-jər (English), ro-ZHE (French) | English, French, Catalan, Swedish, Norwegian, Danish, German, Dutch | |
| Rogier | | ro-KHEER | Dutch | |