- Name - OCEANA
Meaning - OCEAN
- Name - OCEANNA
Meaning - FROM THE SEA
- Name - ODAHINGUM
Meaning - RIPPLING WATER
- Name - ODALYS
Meaning - WEALTH
- Name - ODEDA
Meaning - STRONG
- Name - ODELIA
Meaning - LITTLE WEALTHY ONE
- Name - ODELIA
Meaning - WEALTH
- Name - ODELLA
Meaning - WOOD HILL
- Name - ODERA
Meaning - PLOUGH OFIRA
- Name - ODESSA
Meaning - PLACE NAME
- Name - ODETTA
Meaning - WEALTH
- Name - ODETTE
Meaning - WEALTH
- Name - OFIRA
Meaning - GOLD
- Name - OGIN
Meaning - WILD ROSE
- Name - OHAWNA
Meaning - GOD'S GRACIOUS GIFT
- Name - OKSANA
Meaning - HOSPITALITY
- Name - OKSANA
Meaning - WELCOMING
- Name - OKSANNA
Meaning - HOSPITALITY
- Name - OLA
Meaning - ANCESTOR
- Name - OLATHE
Meaning - BEAUTIFUL
- Name - OLGA
Meaning - NORSE HOLY
- Name - OLIVETTE
Meaning - ELF ARMY
- Name - OLIVIA
Meaning - A FORM OF OLGA
- Name - OLIVIA
Meaning - LATIN OLIVE
- Name - OLIVIA OLIVE
Meaning - SYMBOL OF PEACE
- Name - OLLA
Meaning - ONE WHO IS PRECIOUS
- Name - OLLIVE
Meaning - OLIVE BRANCH
- Name - OLLIVIA
Meaning - ELF ARMY
- Name - OLYMPIA
Meaning - FROM MOUNT OLYMPUS
- Name - OLYMPIA
Meaning - FROM MOUNT OLYMPUS
- Name - OLYVIA
Meaning - ELF ARMY
- Name - OMINOTAGO
Meaning - BEAUTIFUL VOICE
- Name - ONA
Meaning - RIVER
- Name - ONAWA
Meaning - WIDE AWAKE
- Name - ONIDA
Meaning - THE ONE SEARCHED FOR
- Name - OONA
Meaning - ONE WHO IS PURE
- Name - OONA
Meaning - LATIN ONE
- Name - OONAH
Meaning - LATIN ONE
- Name - OOTA DABUN
Meaning - DAY STAR
- Name - OPAL
Meaning - GEMSTONE
- Name - OPALINE
Meaning - JEWEL
- Name - OPHELIA
Meaning - GREEK A HELP
- Name - OPHRAH
Meaning - LIGHT
- Name - OPRAH
Meaning - RUNAWAY ORALEE
- Name - OPRAH
Meaning - RUNAWAY
- Name - ORA
Meaning - SEACOAST
- Name - ORALEE
Meaning - LORD IS MY LIGHT
- Name - ORALEE
Meaning - MY LIGHT
- Name - ORALIA
Meaning - GOLDEN
- Name - OREEN
Meaning - FROM THE PINE TREE
- Name - ORIANA
Meaning - BORN AT SUNRISE
- Name - ORIANNA
Meaning - BORN AT SUNRISE
- Name - ORINDA
Meaning - PINE TREES
- Name - ORLA
Meaning - GOLDEN PRINCESS
- Name - ORLANTHA
Meaning - FAME OF THE LAND
- Name - ORLI
Meaning - THE LIGHT IS MINE
- Name - ORPAH
Meaning - THE NECK OR SKULL
- Name - ORPAH
Meaning - FAWN
- Name - ORVA
Meaning - COURAGEOUS FRIEND
- Name - ORVA
Meaning - BRAVE FRIEND
- Name - OSMA
Meaning - DIVINE PROTECTOR
- Name - OSWALDA
Meaning - GOD'S POWER
- Name - OTHELIA
Meaning - WEALTH
- Name - OTTILIE
Meaning - WEALTH
- Name - OWENA
Meaning - A HIGH
