| Quirinus | | kwi-RIEN-əs (English), kwi-REEN-əs (English) | Roman Mythology, Late Roman | |
| RÍGhnach | | - | Irish Mythology | |
| RÍOghnach | | - | Irish Mythology | |
| Ra | | RAH | Egyptian Mythology | |
| Raiden | | - | Far Eastern Mythology | |
| Raijin | | ṙah-ee-jeen (Japanese) | Far Eastern Mythology | |
| Rangi | | - | Maori, Polynesian Mythology | |
| Rashn | | - | Persian Mythology | |
| Rashnu | | - | Persian Mythology | |
| Re | | RAY | Egyptian Mythology | |
| Remus | | REE-məs (English) | Roman Mythology, Romanian | |
| Rhea | | REE-ə (English) | Greek Mythology (Latinized), Roman Mythology | |
| Rheia | | - | Greek Mythology | |
| Rhiannon | | hri-AN-ahn (Welsh), ree-AN-ən (English), REE-ən-ən (English) | Welsh, English, Welsh Mythology | |
| Rigantona | | - | Celtic Mythology | |