| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Romanus | - | Late Roman | ||
| Romulus | RAWM-yə-ləs (English) | Roman Mythology | ||
| Rosalia | ro-zah-LEE-ah (Italian) | Italian, Spanish, Portuguese, Late Roman | ||
| Roxana | rahk-SAN-ə (English), rok-SAHN-ah (Spanish) | English, Spanish, Romanian, Ancient Greek (Latinized) | ||
| Rozalia | - | Polish, Romanian | ||
| Rufina | - | Russian, Spanish, Ancient Roman | ||
| Rufinus | - | Ancient Roman | ||
| Rufus | ROO-fəs (English) | Ancient Roman, English, Biblical | ||
| Ruxandra | - | Romanian |