| RuaidhrÍ | Man | Irish Names |
| Ruairí | Man | Irish Names |
| Ruairidh | Man | Scottish Names |
| Ruana | Woman | Persian Names |
| Ruaridh | Man | Scottish Names |
| Ruba | Woman | Arabic Names |
| Rubaina | Woman | Indian Names |
| Rubelyn | Woman | American Names |
| Ruben | Man | Spanish Names |
| Rubeus | Unisex | Latin Names |
| Rubio | Unisex | Spanish Names |
| Rubo | Man | Spanish Names |
| Ruby | Woman | English Names |
| Ruchira | Woman | Indian Names |
| Rudo | Unisex | African - Bantu of Zimbabwe Names |
| Rudolph | Man | English Names |
| Rudy | Man | American Names |
| Rudyard | Man | English Names |
| Rue | Woman | English Names |
| Rufaro | Unisex | African - Bantu of Zimbabwe Names |