| Name | Meaning | Gender | Origin |
| Rollo | Renowned In The Land. Roland Was A Legendary Hero Who Served Charlemagne. | Male | French |
| Romhild | Glorious Battle Maiden | Female | German |
| Romhilda | Glorious Battle Maiden | Female | German |
| Romhilde | Glorious Battle Maiden | Female | German |
| Romilda | Glorious Battle Maiden | Female | German |
| Romilde | Glorious Battle Maiden | Female | German |
| Ronal | Rules With Counsel. Form Of Ronald From Reynold. | Male | English |
| Ronald | Powerful | Male | English |
| Ronaldo | Rules With Counsel. Form Of Ronald. | Male | Spanish |
| Rondalyn | Unknown | Female | English |
| Ronell | Rules With Counsel. Form Of Ronald From Reynold. | Male | English |
| Ronelle | Powerful Seas. | Female | Welsh |
| Ronli | My Joy | Female | Hebrew |
| Ronnell | Rules With Counsel. Form Of Ronald From Reynold. | Male | English |
| Roosevelt | From The Rose Field | Male | Dutch |
| Rosaleen | Variant Of Roisin: Little Rose | Female | Gaelic |
| Rosalie | Rose | Female | Italian |
| Rosalind | Beautiful | Female | Spanish |
| Rosalinda | Beautiful | Female | Spanish |
| Rosalinde | Beautiful | Female | Spanish |
| Roschelle | | Female | English |
| Roselin | Red Haired | Male | French |
| Roselyn | Red Haired | Male | French |
| Roslin | Red Haired | Male | French |
| Roslyn | Red-Haired | Male | French |
| Rosselin | Red Haired | Male | French |
| Rosselyn | Red Haired | Male | French |
| Rosswald | Horse Mighty | Male | German |
| Rostislav | Meaning Unknown | Male | Czechoslovakian |
| Roswald | Horse Mighty | Male | German |