| Ruperto | | roo-PER-to | Spanish | |
| Rupinder | | - | Indian (Sikh) | |
| Ruprecht | | - | German (Archaic) | |
| Rurik | | - | Russian | |
| Rusiko | | - | Georgian | |
| Ruslan | | roo-SLAHN (Russian) | Russian, Tatar, Bashkir, Ukrainian, Belarusian, Kazakh, Kyrgyz, Uzbek, Azerbaijani, Ossetian, Cheche | |
| Ruslana | | - | Ukrainian | |
| Rustam | | - | Kazakh, Uzbek, Azerbaijani, Tajik | |
| Rusudan | | - | Georgian | |
| Rusudani | | - | Georgian | |
| Rut | | ROOT (Spanish) | Spanish, Icelandic, Swedish, Hebrew, Biblical Hebrew | |
| Rutendo | | - | Southern African, Shona | |
| Ruth (1) | | ROOTH (English), ROOT (German) | English, German, Dutch, Swedish, Norwegian, Danish, Spanish, Biblical, Biblical Latin | |
| Ruxandra | | - | Romanian | |
| Ruy | | - | Portuguese, Spanish | |