Starting with letter O
| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 241 | Orlan | English | From the pointed hill. | M | |
| 242 | Orlan | German | Renowned in the land. Form of Roland. | M | |
| 243 | Orlan | Spanish | Renowned in the land. Form of Roland. | M | |
| 244 | Orland | English | From the pointed hill. | M | |
| 245 | Orland | German | Renowned in the land. Form of Roland. | M | |
| 246 | Orland | Spanish | Renowned in the land. Form of Roland. | M | |
| 247 | Orland | Teutonic | Fame of the land. | M | |
| 248 | Orlando | German | Variant of Roland: Famed land; renowned in the land. | M | |
| 249 | Orlando | Italian | Variant of Roland: Famous land;.heroic. | M | |
| 250 | Orlando | Spanish | Famous land. | M | |
| 251 | Orlando | Teutonic | Fame of the land. | M | |
| 252 | Orleans | Shakespearean | 'King Henry V' Duke of Orleans. | M | |
| 253 | Orlege | Anglo-Saxon | Battle strife. | M | |
| 254 | Orlin | German | Renowned in the land. Form of Roland. | M | |
| 255 | Orlin | Spanish | Renowned in the land. Form of Roland. | M | |
| 256 | Orlondo | German | Renowned in the land. Form of Roland. | M | |
| 257 | Orlondo | Spanish | Renowned in the land. Form of Roland. | M | |
| 258 | Orm | Norse | Son of Ulf. | M | |
| 259 | Orman | English | Spearman. | M | |
| 260 | Ormeman | English | Spearman. | M | |