| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Ruaridh | - | Scottish | ||
| RubÉN | roo-BEN | Spanish | ||
| Rube | ROOB | English | ||
| Rubem | - | Portuguese (Brazilian) | ||
| Ruben | RUY-bən (Dutch) | Swedish, Norwegian, Danish, Dutch, French, Armenian, Biblical Latin | ||
| Rubena | roo-BE-nah | Esperanto | ||
| Rubens | - | Portuguese (Brazilian) | ||
| Rubinho | - | Portuguese | ||
| Ruby | ROO-bee | English | ||
| Rubye | ROO-bee | English | ||
| Ruchel | - | Yiddish | ||
| Rudo | - | Southern African, Shona | ||
| 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 |