| Rochus | | - | German, Dutch, Ancient Germanic (Latinized) | |
| Romilda | | - | Italian, Ancient Germanic | |
| Roslindis | | - | Ancient Germanic | |
| Rosmunda | | - | Ancient Germanic | |
| Rothaid | | - | Ancient Germanic | |
| Roxana | | rahk-SAN-ə (English), rok-SAHN-ah (Spanish) | English, Spanish, Romanian, Ancient Greek (Latinized) | |
| Roxane | | rok-SAHN (French), rahk-SAN (English) | French, English, Ancient Greek | |
| Roza (2) | | - | Ancient Germanic | |
| Rudesind | | - | Ancient Germanic | |
| Sappho | | SAF-o (English) | Ancient Greek | |
| Saxa | | - | Ancient Germanic | |
| Seleucus | | - | Ancient Greek (Latinized) | |
| Seleukos | | - | Ancient Greek | |
| Sigdag | | - | Ancient Germanic | |
| Sigibert | | - | Ancient Germanic | |