This changing weather, protect your family with big discounts! Use code: FIRST10This changing weather, protect your family with big discounts! Use code: FIRST10

ADDED TO CART SUCCESSFULLY GO TO CART

Track your parenting journey

Baby Names Starting With O for Boys & Girls: Meanings, Religion, Rashi & Nakshatra

Baby Care

Written by - Mylo BabyLast updated: Aug 27, 2026

Baby Names Starting With O for Boys & Girls: Meanings, Religion, Rashi & Nakshatra

10 min

O is one of the smallest and most distinctive starting letters in Mylo's database, with just over 310 names on file. That scarcity makes O names feel deliberate: parents choosing one are usually reaching for something specific, whether the sacred syllable Om itself, a Western import like Oscar, or a Sanskrit name built on the "Ojas" root.

Quick Answer

Popular O names include Omkar, Ojas, Owais and Owen for boys, and Oviya, Ojasvi, Olive and Oishika for girls.

Baby Boy Names Starting With O

Name	Meaning
Omkar	The sound of Om; also a name for Ganesha
Onkar	Opens the Sikh Mul Mantra; "God in his entirety"; also Shiva
Ojas	Body strength; nobleness and goodness
Omesh	Lord of Om; the Supreme Almighty
Owais	A companion of the Prophet; brave and gifted
Onish	Lord of the mind; a name for Krishna
Ovi	Holy message of a Marathi saint; "pretty"
Ovin	Clever-minded, cool-tempered, judicious
Ostin	Variant of Austin; great or magnificent
Ozul	Shadow
Owen	Well-born, young warrior (Welsh)
Oscar	God's spear or deer lover (Norse/Irish)

Baby Girl Names Starting With O

Name	Meaning
Oviya	Tamil for "artist"
Omisha	Goddess of birth and death; spirit of creation
Ojasvi	Bright, energetic, full of vital power
Olive	Resembles the olive tree, a symbol of peace
Omysha	Variant of Omisha; smile
Omaira	Star; one who is prospering, blooming
Oishika	A great achiever
Ojaswini	Lustrous; possesses vital energy
Oriana	Golden; tied to sunrise and dawn
Oeshi	Divine; rose; one who has triumphed
Oindrila	Another name for the wife of Lord Indra
Ojaswi	Bright, radiant, full of strength

Unique O Names You Don't Hear Everywhere

For Boys: Ozul (shadow), Ovin (clever, cool-tempered), Ostin (great, magnificent), Onish (linked to Krishna's radiance).

For Girls: Oindrila (wife of Indra), Oeshi (divine, rose), Omysha (smile), Oishika (a great achiever).

Hindu Baby Names Starting With O

Almost every Hindu O name traces back to the sacred syllable "Om" or the Sanskrit root "ojas" (vigour, vital energy), making the list narrower than most letters but each name carrying real spiritual weight.

Name	Gender	Meaning/Connection
Omkar	Boy	Sound of Om; a name for Ganesha
Ojas	Boy	Body strength, vigour
Omesh	Boy	Lord of Om
Omisha	Girl	Goddess of birth and death
Ojasvi	Girl	Bright, energetic, powerful
Oindrila	Girl	Wife of Lord Indra

Muslim Baby Names Starting With O

Name	Gender	Meaning
Owais	Boy	A companion of the Prophet; wolf-hearted
Omar	Boy	Elevated, long-lived, powerful orator
Osman	Boy	Wise, most powerful; historic Ottoman name
Omera	Girl	An eloquent, charming speaker

Sikh Baby Names Starting With O

A thin list, revolving almost entirely around "Ik Onkar," the opening phrase of the Guru Granth Sahib.

Name	Gender	Meaning
Onkar	Boy	Opens the Mul Mantra; "God in his entirety"
Omkar	Boy	Same sacred root, shared across Hindu and Sikh families

Christian Baby Names Starting With O

Name	Gender	Meaning
Owen	Boy	Well-born, young warrior (Welsh)
Oscar	Boy	God's spear or deer lover
Olive	Girl	Symbol of peace
Oriana	Girl	Golden; sunrise and dawn
Oliver	Boy	Olive tree planter
Olivia	Girl	Feminine form of Oliver

Jain Baby Names Starting With O

A very thin letter for Jain naming specifically; there's no meaningful dedicated cluster. Families often adapt a broader Jain virtue name or work with a family pandit rather than expect a ready-made list.

O Names by Meaning

Rooted in "Ojas" (vigour and radiance): Ojas, Ojasvi, Ojaswi, Ojaswini.

Built on the sacred syllable Om: Omkar, Onkar, Omesh, Omisha.

Achievement and artistry: Oishika ("a great achiever") and Oviya ("artist").

Why O Is a Rare but Meaningful Starting Letter

O is uncommon as a starting sound in Indian names because very few native Sanskrit or Arabic words begin with a pure "O" sound. Most Hindu O names exist because they're built directly on the sacred syllable "Om." The rest of the letter is filled out by Western imports (Oscar, Owen, Olive) and Arabic names where O is a transliteration choice (Owais).

Baby Names Starting With O by Nakshatra

Nakshatra	Suggested Sound	Name Ideas
Rohini	O (also Va, Vi, Vu, Bee, Ba, Bi, Bu padas)	Omkar, Onkar, Ojas, Oviya

Every O-starting name checked directly on Mylo's pages is tagged with Rohini as the Nakshatra.

Baby Names Starting With O by Rashi

Here's a genuine discrepancy worth flagging: many published Rashi charts group O under Vrishabha (Taurus), since Rohini classically sits within Vrishabha. But checking live Mylo pages for Omkar, Ojas, Onkar, Onish, Owen and Oscar directly, every single one is tagged with Mesha (Aries) as the Rashi, with O listed as one of Mesha's own syllables alongside A, L, E and I. Since sources genuinely differ, treat this as a starting point and confirm with your family pandit before finalising. You can browse names by Vrishabha Rashi on Mylo to compare.

How to Choose the Best O Name for Your Baby

Decide which tradition matters most: Hindu names built on "Om" and "ojas," a Muslim name like Owais, a Sikh name tied to Onkar, or a Western import like Oscar. Double-check the meaning on the name's actual page, since spelling variants (Ojasvi vs. Ojaswi) can carry subtly different listed meanings. Say the full name with your surname, and confirm the Rashi/Nakshatra with a pandit given the discrepancy noted above.

Mistakes to Avoid When Choosing an O Baby Name

Assuming O names are rare because they're less meaningful; Omkar and Onkar carry some of the deepest spiritual weight of any letter.
Confusing Om-based names with unrelated Western O names; Oscar and Owen have Norse and Welsh roots with no connection to the sacred syllable.
Treating spelling variants as interchangeable; Ojasvi, Ojaswi and Ojaswini are listed as separate names with sometimes different nuances.
Locking in a Rashi or Nakshatra from a single source, since O gets classified differently across charts.
Skipping the pronunciation check on multisyllabic names like Oindrila and Ojaswini.

FAQs

What are some unique O names for boys?
Ozul (shadow), Ovin, Ostin and Onish.

What are some unique O names for girls?
Oindrila, Oeshi, Omysha and Oishika.

Are there short O names?
Yes. Ovi and Om are among the shortest, and Ojas and Olive aren't far behind.

Are all O names from one religion?
No. O spans Hindu names built on "Om" and "ojas," Muslim names like Owais, Sikh names tied to Onkar, and Christian imports like Owen. Jain naming is very thin for this letter.