| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Roy | ROI (Scottish, English) | Scottish, English, Dutch | ||
| Roza (1) | RO-zah (Russian) | Russian, Slovene, Bulgarian, Macedonian | ||
| Roza (2) | - | Ancient Germanic | ||
| Rozalija | - | Lithuanian, Slovene, Croatian, Macedonian | ||
| Rozika | - | Croatian | ||
| Ru | - | Chinese | ||
| RuŽA | ROO-zhah | Croatian, Serbian | ||
| RuŽIca | - | Croatian | ||
| Ruadh | - | Irish, Scottish | ||
| Ruairi | - | Scottish | ||
| Ruairidh | - | Scottish | ||
| Ruaraidh | - | Scottish | ||
| Ruaridh | - | Scottish | ||
| Ruba | - | Arabic | ||
| Ruben | RUY-bən (Dutch) | Swedish, Norwegian, Danish, Dutch, French, Armenian, Biblical Latin |