| Ruben | | RUY-bən (Dutch) | Swedish, Norwegian, Danish, Dutch, French, Armenian, Biblical Latin | |
| Ruby | | ROO-bee | English | |
| Rubye | | ROO-bee | English | |
| Rudesind | | - | Ancient Germanic | |
| Rudolf | | ROO-dawlf (German), RUW-dawlf (Polish) | German, Dutch, Swedish, Norwegian, Danish, Polish, Czech, Hungarian, Slovene, Croatian, Russian, Arm | |
| Rudolph | | ROO-dahlf | English | |
| Rudy | | ROO-dee | English | |
| Rudyard | | RUD-yərd | English (Rare) | |
| Rue | | ROO | English | |
| Rufina | | - | Russian, Spanish, Ancient Roman | |
| Rufinus | | - | Ancient Roman | |
| Rufus | | ROO-fəs (English) | Ancient Roman, English, Biblical | |
| Rupa | | - | Indian, Hindi, Marathi, Bengali, Nepali | |
| Rupert | | RUY-pərt (Dutch), ROO-pərt (English), RUW-pert (Polish) | German, Dutch, English, Polish | |
| Russ | | RUS | English | |