| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| RosÁRio | roo-ZA-ryoo | Portuguese | ||
| Rosa (1) | RO-sah (Spanish, Dutch), RAW-zah (Italian), RO-zə (English) | Spanish, Italian, Portuguese, Swedish, Norwegian, Danish, Dutch, German, English | ||
| Rosalia | ro-zah-LEE-ah (Italian) | Italian, Spanish, Portuguese, Late Roman | ||
| Rosalina | ro-sah-LEE-nah (Spanish) | Portuguese, Spanish | ||
| Rosana | - | Portuguese | ||
| Rosinha | - | Portuguese | ||
| Rubem | - | Portuguese (Brazilian) | ||
| Rubens | - | Portuguese (Brazilian) | ||
| Rubinho | - | Portuguese | ||
| Rufino | roo-FEE-no (Italian, Spanish) | Italian, Spanish, Portuguese | ||
| Rui | - | Portuguese | ||
| Rute | - | Portuguese | ||
| Ruy | - | Portuguese, Spanish | ||
| SÉRgio | SER-zhyoo | Portuguese | ||
| SÍLvia | - | Portuguese, Catalan |