Baby Names Starting With O
O is a warm, memorable vowel letter that offers immediate distinction. While it has a focused selection compared to vowel giants like A, names like Oliver, Olivia, Om, and Omar rank among the most recognizable and beloved names globally.
O Naam Ki Rashi (नाम राशि)
Vedic astrologyNames beginning with O fall under Vrishabha (वृषभ, Taurus)DetailsHide
Vrishabha (वृषभ) takes O ओ directly as one of its naming sounds.
This is the naam rashi, taken from the first syllable of the name. It matches the janma rashi — the one read from the Moon's position at birth — only when the name was chosen from the birth star in the first place.
Curated O Names by Style
A curated shortlist of popular, unique, modern, and classic baby names starting with O. You can also explore dedicated girl and boy pages for gender-specific choices.
Popular O names
7· Trending and widely lovedModern O names
8· Fresh, contemporary favoritesClassic O names
10· Timeless names that endureAll 44 Names Starting With O
44 names
- Boy
- Girl
- Unisex
- OakleyFrom the oak meadow; oak clearing
- OaklynnOak Tree Meadow, Strong Oak Field
- OceanThe sea
- OctaviaEighth-born or eighth child
- OctavianusEighth-born son or royal leader
- OctaviusEighth child or eighth-born
- OdetteWealth; little wealthy one (French, from Germanic Oda)
- Odhranlittle pale green one
- OdinMeans "beloved", from Proto-Germanic * Frijjō, derived from the root * frijōną meaning "to love"
- Oisinlittle deer
- OjasVitality, vigour, energy, inner strength
- OjasviBright, Energetic, Lustrous, Vigorous
- OjaswiLustrous, energetic, powerful, radiant
- OliveOlive tree; emblem of peace
- OliverOlive tree, symbol of peace and fruitfulness
- OliviaOlive Tree, Peace
- OllieOlive tree; symbol of peace (pet form of Oliver)
- Olwenwhite footprint
- OmSacred syllable
- OmarFlourishing, Long-Lived
- OmkarThe sacred primordial sound of Om
- OmvirDivinely brave; sacred warrior of Om
- OneerLeader, pioneer; one who charts new paths
- OnirShining, radiant, leader
- OnishLord of the mind; a name for Lord Krishna; radiance
- OnyxFrom the English word for the gemstone (a variety of chalcedony), which can be black, red or other colours
- OorjaEnergy, vitality, vigor, life force
- OpalGem; precious stone (the opal)
- OpheliaHelper, aid
- OrhanGreat leader, mighty ruler
- OrionHunter; rising in the sky (the constellation)
- OrlaGolden princess (Irish Órfhlaith)
- OrlandoFrom the Old German elements hruod meaning "fame" and lant meaning "land", though some theories hold that the second element was originally nand meaning "brave"
- Orsonbear cub
- OscarDeer-lover; friend of deer; divine spear
- OsianLittle deer
- OtisWealthy, Fortunate, Prosperous
- OttilieProsperous in battle; fortunate heroine (from Germanic Odila)
- OttoWealth, prosperity
- OvidikaSheep, shepherdess, or poetically inspired
- OvidiusSheep, shepherd, or poetical scholar
- OviyaBeautiful painting, artist, artwork
- OwaisGifted, bestowed, little wolf
- OwenYoung warrior, well-born, noble
Where O Names Come From
The traditions behind this letter, and the wider collection for each one if you would rather browse by origin than by initial.
While O represents a curated pool of names, it produces some of the most enduring and beloved names across Western, Arabic, and Indian traditions.
Explore Recommended Resources
Explore more tools and resources to support you at every step.