Baby Names Starting With O

Olivia has held #1 girl name for years. Oliver is in the top 5 for boys. If O names are your territory, you're starting with the most popular letter in America right now.

1,616 names — click any name for full meaning, origin, and safety analysis

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#1

Olivia

Girl

peace, fruitfulness

English
#3

Oliver

Boy

ancestor's descendants

English
#26

Owen

Boy

well-born

Welsh
#156

Oaklynn

Girl

oak tree, pool

American
#157

Oakley

Girl

oak tree clearing

English
#170

Olive

Girl

symbol of peace and wisdom

English
#217

Oscar

Boy

God's spear

English
#260

Omar

Boy

populous, thriving

Arabic
#261

Ophelia

Girl

advantage, profit

Greek
#274

Otto

Boy

wealth, fortune, prosperity

German
#294

Octavia

Girl

born eighth, eighth child

Roman
#326

Orion

Boy

rising in the sky, boundary

English
#359

Onyx

Boy

fingernail, claw

American
#411

Oakley

Boy

oak tree meadow

English
#449

Opal

Girl

precious gemstone

English
#480

Odin

Boy

divine inspiration, fury, frenzy

Norse

Oaklee

Girl

oak tree clearing

American

Ocean

Boy

world-encircling waters

American

Oaklyn

Girl

strong woodland

American

Ozzy

Boy

spear of God (from Oscar)

English

Omari

Boy

God the highest (variant interpretation)

Swahili-speaking African

Oakleigh

Girl

clearing with oak trees

English

Otis

Boy

wealth, fortune

Germanic

Ocean

Girl

world-encircling river

English

Orlando

Boy

famous land

Italian

Ozias

Boy

my strength is Yahweh

Hebrew

Osiris

Boy

throne of the eye (possible etymology)

Egyptian

Osman

Boy

founder, builder (cultural meaning)

Turkish

Ollie

Boy

olive tree

English

Oziel

Boy

God is my strength

Jewish

Odette

Girl

prosperous, rich

French

Osiel

Boy

strength of God

Spanish

Onyx

Girl

claw, fingernail (Greek)

American

Oakland

Boy

land of oak trees

American

Osvaldo

Boy

power of the gods

Spanish

Octavio

Boy

eighth

Spanish

Oren

Boy

ash tree

Hebrew

Ozzie

Boy

deer-friend, divine spear

English

Obadiah

Boy

servant of God

Jewish

Orson

Boy

bear

English

Ori

Boy

light of God

Hebrew

Odessa

Girl

city of Odysseus

American

Oaklen

Boy

strong as an oak

English

Oskar

Boy

god spear

Scandinavian

Oriana

Girl

rising, sunrise

Italian

Ofelia

Girl

help, aid

Spanish

Oziah

Boy

my strength is Yahweh

Jewish

Oslo

Boy

meadow of the gods

Norwegian

Oaklee

Boy

oak woodland settlement

American

Obed

Boy

servant, worshipper of God

Hebrew

Octavius

Boy

eighth-born

Roman

Omer

Boy

sheaf of grain; biblical unit of measure

Israeli

Oswald

Boy

divine power, God's rule

English

Olin

Boy

forefather

Scandinavian

Om

Boy

sacred primordial sound

Indian

Oden

Boy

the frenzied one, the inspired

Scandinavian

Orhan

Boy

army of the ruler, warrior chief

Turkish

Orin

Boy

pine tree

Irish

Olsen

Boy

son of Ole (ancestor)

Norwegian

Ollie

Girl

olive tree

English

Octavian

Boy

eighth

Roman

Ottilie

Girl

Osmar

Boy

god + famous

Portuguese

Oak

Boy

strength, endurance

English

Olympia

Girl

home of the gods

Greek

Oona

Girl

wave

Irish

Orla

Girl

golden princess, golden sovereign

Irish

Osiah

Boy

God supports

American

Omarion

Boy

flourishing, long-lived

African American

Olivier

Boy

symbol of peace and wisdom

French

Orrin

Boy

pine tree

American

Oshea

Boy

descendant of the hawk-like one (Irish)

Hebrew

Ozzy

Girl

divine power (short for Oswald)

American

Ozzie

Girl

divine strength (from Osbourne)

American

Oaks

Boy

oak trees, oak grove

American

Olen

Boy

ancestor's descendant

Scandinavian

Oaklie

Girl

meadow of oaks

American

Oswaldo

Boy

divine power

Spanish

Odelia

Girl

wealth, fortune

Jewish

Oakes

Boy

dweller near the oak trees

American

Ojas

Boy

vital energy, radiance, vigor, strength

Indian

Ousmane

Boy

form of Uthman, companion of the Prophet

West African

Oz

Boy

strength, power, courage

Israeli

Oaklan

Boy

land of oaks

American

Ovidio

Boy

of the sheep family, shepherd lineage

Italian

Odysseus

Boy

child of Zeus (folk etymology)

Greek

Omri

Boy

eloquent, verbose speaker

Hebrew

Oseias

Boy

deliverer, liberator

Brazilian

Opie

Boy

surname used as given name

American

Omega

Boy

completion, eternity

American

Olga

Girl

holy, blessed

Russian

Olson

Boy

ancestors relic, heir

American

Oaklyn

Boy

oak lake

American

Ora

Girl

hour; now

Jewish

Ohana

Girl

family, extended family

Hawaiian

Owais

Boy

little wolf

Arabic

Odalys

Girl

ancestral property

Spanish

October

Girl

eighth month

English

Oakland

Girl

land of oak trees

American

Oumar

Boy

flourishing, long-lived

West African

Oriel

Boy

golden chamber, bay window

English

Oberon

Boy

noble bear

English

Othniel

Boy

strength of God

Hebrew

Obi

Boy

child born at a prosperous time

Igbo

Oryan

Boy

little king

Hebrew

Ori

Girl

weaving, folding

Hebrew

Oswin

Boy

friend of the gods (Germanic tradition)

English

Oseas

Boy

salvation, God saves

Portuguese

Ollivander

Boy

olive tree man

English

Othman

Boy

ruler, king

Arabic

Olyvia

Girl

olive tree

English

Osias

Boy

deliverance, rescue

Hebrew

Oisin

Boy

little deer, fawn

Irish

Olena

Girl

moon (via Selene connection)

Ukrainian

Orlin

Boy

eagle-like, strong as an eagle

Bulgarian

Owyn

Boy

young warrior

Welsh

Oumou

Girl

mother, beloved mother

Malian

Orion

Girl

hunter, rising in the sky

American

Obaida

Boy

little servant of God

Arabic

Ostin

Boy

great, venerable

American

Orianna

Girl

rising sun

English

Olan

Boy

little lord, champion

Irish

Oaklynne

Girl

oak tree

American

Odell

Boy

place of the blue dye plant

English

Ona

Girl

gracious gift

Lithuanian

Omir

Boy

long life, age

Arabic

Olvin

Boy

elf friend, magical friend

Scandinavian

Orli

Girl

I have light, enlightened

Israeli

Orian

Boy

rising in the east; the hunter

Hebrew

Oran

Boy

pale, sallow-complexioned

Irish

Ozan

Boy

storyteller, keeper of oral tradition

Turkish

Oaklin

Boy

modern nature compound name

American

Olivianna

Girl

grace, favor

English

Obsidian

Boy

volcanic black glass

American

Oaken

Boy

strong and enduring as oak wood

English

Ole

Boy

ancestor's relic, descendant

Norwegian

Oceana

Girl

ocean, sea

English

Odyn

Boy

fury, divine madness, inspiration

Norse

Ozziel

Boy

God is my strength

Hebrew

Oliver

Girl

olive tree, symbol of peace

English

Onix

Boy

fingernail, claw

American

Obie

Boy

worshiper of God

English

Odyssey

Girl

long journey, epic voyage

American

Olyver

Boy

ancestor's descendant (alternative etymology)

English

Oriah

Girl

God is my light

Jewish

Oriyah

Girl

light of God

Jewish

Olivander

Boy

man of the olive tree

English

Ossian

Boy

little deer

Irish

Obama

Boy

curved riverbank or piece of land

Kenyan

Olivia

Boy

symbol of peace and wisdom

English

Othello

Boy

wealth, fortune, prosperity

Italian

Owen

Girl

well-born, noble

Welsh

Orly

Girl

my light

Hebrew

Oli

Boy

olive tree

English

Olenna

Girl

bright, radiant

English

Oday

Boy

to pass quickly, to flow

Arab

Ozlo

Boy

ridge meadow

Norwegian

Oasis

Girl

fertile refuge in a desert

English

Ozion

Boy

God is my strength (variant of Uzziah)

Hebrew

Oluwadarasimi

Girl

God has blessed me with beauty/goodness

Yoruba

Oliva

Girl

olive tree

Spanish

Oleander

Boy

olive tree + man (Greek etymology)

English

Osmin

Boy

divine protection

German

Olani

Girl

heavenly joy, belonging to the sky

Hawaiian

Osher

Boy

happiness, good fortune

Jewish

Osiris

Girl

powerful, mighty

Egyptian

Olliver

Boy

elf warrior (alternative etymology)

English

Ottis

Boy

Wealthy, prosperous warrior

American

Ohemaa

Girl

queen, queen mother

Ghanaian

Osborne

Boy

bear of the gods

English

Odis

Boy

wealth, prosperity, riches

American

Ozai

Boy

fictional Fire Lord, invented name

American

Osayd

Boy

young lion, lion cub

Arabic

Oneal

Boy

Omni

Girl

Osmond

Boy

Oaklen

Girl

Oksana

Girl

Ollin

Boy

Onyxx

Boy

Osbaldo

Boy

Otoniel

Boy

Oasis

Boy

Osama

Boy

Oseph

Boy

October

Boy

Ociel

Boy

Ola

Girl

Ozair

Boy

Ollyver

Boy

Orville

Boy

Omiras

Boy

Octavious

Boy

Odeya

Girl

Oshun

Girl

Omara

Girl

Oceanna

Girl

Olly

Boy

Ocie

Girl

Oryn

Boy

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