Names starting with O
92 first names starting with O. Each links to meaning and origin.
How Names in This Category Differ
Names starting with O span multiple origins and popularity bands. Distribution follows our dataset: each name is tagged by gender, origin, and usage. Popularity and structure differ—some letters favor short, punchy names; others include longer classical forms. First-letter filtering helps parents narrow by sound and alliteration potential. To choose: compare syllable count with your surname, check origin for cultural fit, and review popularity trends. See Popular names and Trending names for rank context. Filter by gender via boy, girl, or unisex names. Browse by letter, Names by style, and Last name compatibility offer additional filters.
Here you can browse first names that start with this letter. Each name links to a detail page with meaning, origin, and popularity. Below you will find links to browse by gender (boy, girl, unisex), by country, and by style, so you can combine letter with other filters. Our hub pages list all letters and all name pages for easy discovery.
Browsing by letter is useful when you have a preferred first letter or want to explore names in alphabetical order. You can then narrow by gender or country using the links in this page, or jump to trending and popular names from the main names section. Every name in the list below goes to a full profile with meaning, origin, and popularity data.
Some letters have many names; others have fewer. Use the compatibility tool to see how names pair with your last name. The compare section shows how names rank across countries. Data comes from official birth statistics and curated sources. Each name profile includes meaning, origin, popularity over time, and related names.
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Popular vs Unique Names in This Category
Top popular and more unique names starting with O.
Short Names Starting With O
- Ocie – From Ocium; eighth; watchful.
- Oden – Fury; inspiration; chief god.
- Ojas – Vitality; splendor; bodily strength; vigor.
- Ola – Ancestor's relic; inheritance; wealth.
- Oleg – Holy; sacred; blessed; sanctified.
Short names (four letters or fewer) starting with O are easy to spell and remember. They work well as first or middle names and pair with longer surnames. Each name above links to its full meaning, origin, and popularity.
Unique Names Starting With O
- O'neil – Champion; descendant of Niall; passionate.
- Oaklan – Oak land; meadow of oak trees.
- Oakleigh – Oak meadow; clearing of oak trees; woodland glade.
- Oakley – Oak clearing.
- Oaklyn – Oak lake; oak clearing; strong tree.
These names starting with O are less common in current rankings, offering a distinctive choice. Each links to meaning, origin, and popularity so you can compare with more popular options.
Names
- O'neil — Champion; descendant of Niall; passionate.
- Oaklan — Oak land; meadow of oak trees.
- Oakleigh — Oak meadow; clearing of oak trees; woodland glade.
- Oakley — Oak clearing.
- Oaklyn — Oak lake; oak clearing; strong tree.
- Oaklynn — Oak lake; oak by the water; woodland pool.
- Obadiah — Servant of Yahweh; worshipper of God.
- Obaloluwa — The king is God; God is king; divine sovereignty.
- Oberon — Noble bear; elf king; ruler of fairies.
- Obinna — Father's heart; dear to father; father's beloved.
- Ocean — Sea; vast water; deep expanse; boundless waters.
- Ocie — From Ocium; eighth; watchful.
- Octavia — Eighth.
- Octavian — Eighth-born; born eighth; imperial.
- Odell — Woad hill; place of woad; prosperous.
- Oden — Fury; inspiration; chief god.
- Odessa — Long journey; wrathful; from the ancient city.
- Odette — Wealth; fortune.
- Odile — Wealthy; prosperous; fortunate.
- Odree — Noble strength; elf ruler; divine power.
- Odysseus — Wrathful; hateful; man of many turns; cunning hero.
- Ojas — Vitality; splendor; bodily strength; vigor.
- Oksana — Hospitality; stranger.
- Ola — Ancestor's relic; inheritance; wealth.
- Olamide — Wealth has arrived; prosperity has come; my wealth has …
- Olaoluwa — Wealth of God; God's honour; divine prosperity.
- Oleg — Holy; sacred; blessed; sanctified.
- Olena — Light; torch; bright one.
- Olga — Holy; blessed.
- Oli — Ancestor's relic; olive tree; peace.
- Olin — Ancestor's relic; heir; descendant.
- Oliver — Olive tree.
- Olivia — Olive tree.
- Olivia-rose — Olive tree; rose; peace and beauty; flower of love.
- Olivine — Olive-green gem; mineral of the earth; green stone.
- Ollie — Olive tree; ancestor's relic; peaceful.
- Olsen — Son of Ole; son of the ancestor's relic.
- Oluwadarasimi — God has been good to me; God has shown me favour.
- Oluwaferanmi — God loves me; the Lord loves me.
- Oluwasemilore — God has done well for me; God has blessed me.
- Oluwatamilore — God is enough for me; God is my sufficiency; God suffic…
- Oluwatimilehin — God is my support; God is my backing.
- Oluwatishe — God is worthy to be served; God deserves praise.
- Oluwatobi — God is great; God is big; the Lord is mighty.
- Olympia — From Mount Olympus.
- Olyvia — Olive tree; peace; symbol of fruitfulness.
- Omari — Flourishing; thriving; long-lived.
- Omid — Hope; expectation; trust.
- Omran — Long-lived; flourishing; prosperous life.
- Onkar — God is one; supreme being; Om.
- Ons — Delight; comfort; intimacy; companionship.
- Onyinyechi — Gift of God; God's gift; divine present.
- Onyx — Claw; nail; black gemstone.
- Ooleepeeka — Distinctive name; unique identity; rare heritage name.
- Ophelia — Help; aid.
- Opie — Of the yew tree; yew wood.
- Ora — Prayer; light.
- Oracle — Prophecy; divine utterance; seer; sacred revelation.
- Oren — Pine tree; ash tree; fair; alert.
- Orest — Mountain dweller; of the mountains; hill man.
- Ori — My light; my flame; illumination; radiance.
- Oriana — Golden; dawn; rising sun.
- Orion — Rising in the sky; hunter.
- Orla — Golden princess; golden sovereign lady.
- Orlando — Famous land.
- Orlane — Gold; golden; from Aurelianus; golden one.
- Ornella — Little flower; flowering ash; golden bloom.
- Orobosa — God's gift; divine blessing; gift from God.
- Orson — Bear cub; little bear; bear-like.
- Osama — Lion; fierce; bold.
- Osiris — Powerful; mighty; lord of the underworld; throne of the…
- Oskar — Divine spear; deer friend; champion.
- Oslo — Meadow beneath the ridge; god's meadow.
- Osman — Baby bustard; founder of the Ottoman dynasty.
- Osten — East; from the east; eastern one.
- Osvaldo — God's power; divine rule; godly ruler.
- Oswald — God's power.
- Othman — Baby bustard; young snake; chosen one.
- Othniel — Lion of God; force of God; God's strength.
- Otis — Wealth; rich.
- Ottavia — Eighth; born eighth; eighth child.
- Otto — Wealth; fortune.
- Oulimata — Beloved daughter; cherished one; precious child.
- Oumaima — Little mother; diminutive of Umm.
- Oumou — Mother; maternal; lady.
- Oussaid — Little lion; young lion; brave cub.
- Oviya — Artist; beautiful art; skilled one.
- Owais — Little wolf; companion of the Prophet.
- Owen — Well-born; noble.
- Owyn — Well-born; noble; young warrior.
- Ozalee — Strength of God; divine power; meadow.
- Ozzy — God's power; divine bear; spear of the gods.
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