女士名:
| Name | Meaning | Origin | Gender |
| OBELIA | Needle | Greek | F |
| OCEAN | Sea | Greek | F |
| OCEANA | From the Sea | Greek | F |
| OCTAVIA | The Eighth | Latin | F |
| ODEDA | Strong | Hebrew | F |
| ODELE | Wealthy, Melody | Greek | F |
| ODELIA | I will praise God | Greek | F |
| ODESSA | The Odyssey | Latin | F |
| ODETTA | Ode | French | F |
| ODETTE | Ode, Melodic | French | F |
| ODINA | Mountain | Latin | F |
| OFIRA | Gold | Hebrew | F |
| OIHANE | From the Forest | Spanish | F |
| OJAL | Vision | Hindi | F |
| OKALANI | Heaven | Hawaiian | F |
| OKI | Ocean Centered | Japanese | F |
| OKSANA | God is With Us | Slavic | F |
| OLENCIA | Not available | American | F |
| OLESIA | Protector of Humanity | Polish | F |
| OLGA | Holy | Slavic | F |
| OLIANA | From Oleander | Hawaiian | F |
| OLINA | Joyous | Hawaiian | F |
| OLINDA | Form of YOLANDA | Latin | F |
| OLIVE | Olive Branch, Peace | Latin | F |
| OLIVIA | Peace - of the olive tree | Latin | F |
| OLWEN | White footprint | Welsh | F |
| OLYMPE | Olympian | French | F |
| OLYMPIA | Mountain of the Gods | Greek | F |
| OMANA | A Woman | Hindi | F |
| ONA | Full of Grace | Latin | F |
| ONAEDO | Gold | African | F |
| ONAONA | Sweet Smell | Hawaiian | F |
| ONDREA | Strong, Courageous | Slavic | F |
| ONELLA | Torch Light | Hungarian | F |
| ONTIBILE | God is Watching Over Me | African | F |
| OONA | One | Celtic/Gaelic | F |
| OPAL | Precious gem | Hindi | F |
| OPHELIA | Helper | Greek | F |
| OPHIRA | Gold | Greek | F |
| OPHRAH | Light | Hebrew | F |
| OPRAH | Runaway | Hebrew | F |
| ORA | Gold | Spanish | F |
| ORALEE | Lord Is My Light | Hebrew | F |
| OREA | Mountains | Greek | F |
| ORIA | From the Orient | Latin | F |
| ORIANA | Golden Dawn | Latin | F |
| ORINDA | Pine Trees | Hebrew | F |
| ORLI | The Light is Mine | Hebrew | F |
| ORMA | Free Men | African | F |
| ORMANDA | Of the Sea | German | F |
| ORPAH | Fawn | Hebrew | F |
| OSANNA | Praise! | Greek | F |
| OSMA | God's Servant | Latin | F |
| OTYLIA | Lucky Heroine | German | F |
| OUIDA | Warrior Woman | French | F |
| OVA | Egg | Latin | F |
| OWENA | Well-born | Welsh | F |
| OWNAH | Form of UNA | Celtic/Gaelic | F |