What are some traditional baby girl names that have stood the test of time?

There are many traditional and classic girl names that are popular all over the world. They include Alice (noble), Amelia (hardworking), Abigail (my father is joy), Gwyneth (happiness), Edith (wealth), and Sussanah (lily).

How do I make sure the baby girl name I choose is easy to pronounce and spell?

Names that are easy to spell are also easy to pronounce. These consist of a few syllables that are very short. You can choose from some common options like Mia (friendly), Ella (beautiful), Emily (eager or laborious), Grace (goodness), Jess (God exists), Lucy (light), Jen (fair one), and Molly (star of the sea).

What are some baby girl names that work well in multiple languages/cultures?

There are many international girl names that have been popular for many decades. These multilingual names usually have Hebrew, Latin, or English origins. Some good examples are Dana (the most beautiful pearl), Cassidy (clever or curly-haired), Chloe (young green shoot), Demi (earth mother), and Diana (divine).

Should I consider the popularity of a baby girl’s name when choosing one for my child?

It would be best to start your baby name search by looking at the popularity of different names. This will be helpful if you desire a trendy name for your child. However, avoid overly popular names as they lack individuality and impact. Your child may prefer an easy-to-pronounce yet unique name when they grow up.

What are some rare girl names?

Rare names allow your child to stand out as they cannot be mistaken for popular and overused names. Very few parents have taken such names over the decades. You can choose from Zendaya (to give thanks), Chantria (moonlight), Yamileth (beautiful), Saanvi (one who will be followed), and Monserrat (jagged mountain).

Home • Baby Names

425 Joyful Girl Names That Start With O

From Ohana to Ozge, an outstanding and original compilation of names for your baby girl.

Written by Kavita Kankani, MBA, BEd

Edited by Rebecca Malachi, BSc

Fact-checked by Apoorva K, MSc (Counseling Psychology)

Last Updated on Feb 28, 2025

Illustration: MomJunction Design Team

Baby girl names that start with O have an ornate literary history. O is the fifteenth letter of the Latin alphabet and emerges from the Phoenician ‘ayin’ meaning ‘eye’ (1). The letter was adapted into Greek as the omega for the long sound, large O, and as the omicron for the vowel form, small O.

In English, the long and short O have distinct sounds based on their origin. The long O in English derives its sound from the Old English long O and thus is a diphthong with the complex sound ‘ou’. This is reflected in Ophelia meaning ‘help,' which is pronounced as ‘ou-fil-ja’. The short O derives its sound from the Middle English short O and thus is either more open and lower or closed and rounded depending on which consonant it is paired with. This is reflected in Olga, which means ‘holy,’ pronounced with an open sound, ‘ol-ga.' However, in Spanish, the short O becomes ‘ue’.

Feminine O names such as Olivia and Odalys are among the top 1000 names in the US (2). Additionally, names like Odette, meaning ‘wealth’ in German, or Octavia, meaning ‘eighth’ in Roman, and O-girl names have gained fame and favor in both fiction and real life. So delve into this list of popular girl names starting with O with original and optimistic meanings to find one you like.

Name	Gender	Meaning
Olivia	Girl	Peace; Olive tree
Olive	Girl	Olive tree
Oaklynn-Name-Meaning:-Ultimate-2025-Guide-For-New-Parents	Girl	Oak clearing
Octavia-Name-Meaning-And-History:-Complete-Guide-In-2025	Girl	Eight or eighth
Ophelia	Girl	Help; Benefit
Opal	Girl	Jewel
Oaklyn	Girl	Oak clearing
Odette-Name-Meaning,-Origin,-And-History:-A-Complete-Guide	Girl	Wealth; Fortune; Heritage
Oriana	Girl	Gold
Odessa	Girl	To hate; Wrathful

Ofelia	Girl	Help; Advantage
Oona	Girl	Lamb; Universal; Happy
Olympia	Girl	From Olympus; Mount Olympus
Olyvia	Girl	Olive; Olive tree; Ancestor's descendant; All cautious
Olga	Girl	Holy; Blessed; Invioilable
Orla-Name-Meaning-And-Origin:-A-Comprehensive-Guide	Girl	Golden princess
October	Girl	Eight; Eighth month
Ohana	Girl	Family
Odelia	Girl	Heritage; Wealth; I will thank Yahweh
Orianna	Girl	Gold; Rising sun; The golden one; Daughter of the light/fire

Oliviana-Name-Meaning,-Popularity,-&-Complete-Guide-for-2025	Girl	Olive; Olive tree; Gracious olive tree
Oceana	Girl	Ocean; From the ocean
Olena-Name-Meaning-And-Origin:-Ultimate-Guide	Girl	Torch; Corposant; Moon; Ancestor's descendant
Ona	Girl	Wave; Favor; Grace
Ottilie	Girl	Prosperous in battle; Riches
Oliva	Girl	Olive; Ancestor's descendant; Aware; All cautious
Obinna	Boy	Heart of the father; Father's throne
Olivianna	Girl	Olive; Olive tree
Olivine	Girl	Olive; Olive tree
Oksana	Girl	Hospitality

Olina	Girl	Ancestor's descendant; Blessed; Sacred; Joy
Oaklin	Unisex	Oak clearing
Olanda	Boy	Ancestor's descendant; Manly; Masculine
Oliviah	Girl	Olive; Olive tree; Elf warrior
Onna	Girl	To grant; To allow; Favor; Grace
Oceanna	Girl	Ocean; From the ocean
Oralia-Name-Meaning,-Origin,-And-Popularity:-Complete-Guide	Girl	Golden
Oni	Girl	Today; Demon; Born on a holy ground; Shelter
Oliana	Girl	Ancestor's descendant; Gracious; Heavenly light; Oleander
Orchid	Girl	Eponymous flowering plant; Testicles

Olenna	Girl	Torch; Corposant; Moon
Orlena	Girl	Gold; Gilded
Omaira	Girl	Prospering; Growing; Burgeoning; Blooming
Otilia	Girl	Heritage; Wealth; Fortune
Oriah	Unisex	Golden
Oceane-Name-Meaning,-Origin-&-History:-3-Key-Facts	Girl	Ocean; From the ocean
Ornella-Name:-Origins,-Meaning,-Popularity,-&-Nicknames	Girl	Flowering ash tree
Ostara	Girl	Germanic goddess of fertility and spring; East; Toward the sunrise
Omelia-Baby-Name-Guide:-Pronunciation,-Popularity-&-More	Girl	Conversation; Sermon
Ozlem-Name-Meaning:-Origin,-Pronunciation,-History-&-Insights	Unisex	Yearning; Missing

Olanna	Unisex	Father's jewel
Odilia	Girl	Wealth; Fortune; Heritage
Omnia	Girl	Wish; Hope
Ola	Girl	Ancestor's descendant; People's victory; Wealth; Honor; Respect; Dignity; Glory
Orabella	Girl	Given to prayer; Entreatable
Oliwia	Girl	Olive; Olive tree; Ancestor's descendant; All cautious
Orah-Name-Meaning-and-Origin:-A-Complete-Guide	Girl	Light; Prayer
Ova	Girl	Egg; Edge of a sword; Awe; Ancestor's descendant
Olevia	Girl	Branch of the olive tree representing peace
Okalani	Girl	Heaven; Heavenly child

Oriane	Girl	Gold; Flower; Rising sun; The golden one
Onalee	Unisex	Favor; Grace; Clearing
Onica	Unisex	Favor; Grace
Obaida-Baby-Name:-Complete-Guide-To-Pronunciation-&-Popularity	Unisex	Servant of God
Orlaith	Girl	Golden princess
Olivette	Girl	Olive tree; Ancestor's descendant; All cautious
Ozella	Girl	Strength; Power
Odeya	Girl	I will thank God
Orlanda	Girl	Renowned in the land
Ogechi	Girl	A fresh and successful ending of a struggle or contest

Oluchi	Girl	Work of God
Olinda	Girl	Wild fig tree
Orelia	Girl	Expensive and glittering as gold; Gilded
Ovee	Unisex	A poetic sect in devotional script; Happy; Small
Ouida	Girl	Famous warrior
Ondria	Girl	Possessing the attitudes of a man
Oonagh-Name-Meaning,-History-And-Pronunciation:-Essential-Guide	Girl	Lamb; Pure; One
Ozioma	Girl	The message, God's good news
Oleta	Girl	Truth
Ophira	Girl	Expensive gold

Onie-Name-Meaning,-History,-And-Comprehensive-Guide	Girl	Lamb; Favor; Grace
Olesia-Name-Meaning-And-Origin:-A-Complete-Guide	Girl	Defending men; Forest; Winged one
Oviya	Girl	Painting; Artist; Beautiful drawing or art
Onnika	Girl	Light reflection of nimble or shine
Oceania	Unisex	River; Body of water
Orquidea	Girl	Orchid
Omaya	Unisex	Life-giver; Servant of God
Omera	Unisex	Life; Sheaf of wheat
Onisha-Name-Meaning:-Comprehensive-Guide-For-Parents	Girl	Nightless; Sleepless
Orianthi	Girl	Flower of the mountain; To Excite

Olimpia	Girl	The one who is from the hill Olympus
Onika	Girl	Favor; Grace; Demon flower
Onora-Baby-Name:-Meaning,-Pronunciation-&-Complete-Guide	Girl	Deserving of integrity
Ottilia	Girl	Heritage; Wealth; Fortune
Oya-Name-Meaning:-Guide-To-Popularity,-Numerology-&-Nicknames	Girl	Lace; Youruban Goddess of storms and winds; She tore
Osmara	Girl	God; Famous
Oprah	Girl	Back of the throat; Fawn
Olufunke	Girl	The one who was gifted from the highest place to be loved
Orlagh	Girl	Golden princess
Odile-Name-Meaning-And-History:-What-You-Need-To-Know	Girl	Wealth; Fortune; Heritage

…

Girl names exuding charm and uniqueness cannot go wrong. Our list of baby girl names that start with O has beautiful options, ranging from timeless to modern. You may either go for Oadira or Oeshi based on what rings well with you. If you are more inclined to your culture and want your princess to imbibe the same, you can go with names that have cultural significance. So, keep going through the list until you find the best one.

Frequently Asked Questions

1. What are some traditional baby girl names that start with the letter O?

Some traditional feminine names starting with O are Olivia and Olive, both derived from the Latin name Oliva, meaning ‘olive.’ Octavia is a Latin name which means ‘eight’ and Ophelia is a Greek name meaning ‘help,’ or ‘advantage.’ Oakley, Oakleigh, or Oaklee mean ‘oak clearing.’

2. Who are some famous or notable women with names that start with O?

Some notable women whose names begin with the letter O are the multi-talented Oprah Winfrey, Miss USA and Miss Universe Olivia Culpo, singers Olivia Rodrigo and Olivia Newton John, and actresses Olivia Munn, Olga Kurylenko, Octavia Spencer, and Olivia Wilde.

3. What are some rare baby girl names that start with O?

Olesia, an extremely rare variant of the name Alexander meaning ‘defender of men,’ Ottilie, a German name which means ‘heritage,’ Ovidia, a Roman name which means ‘sheep,’ and Odessa which is the feminine form of Odysseus.

4. What are some variations or alternate spellings of baby girl names that start with O?

Names like Oakley contain spelling variants like Oaklee, Oakleigh, Oaklyn or Oaklynn. Ocean may also be spelled as Océane, and Odilia may be spelled as Odelia, Odalis, Odetta, Ottilia, or Otylia.

5. What are some nicknames or pet names that can be derived from baby girl names that start with O?

Some nicknames for Olivia can be Liv, Ollie, Livie, Olive, or Livy. Nickname suggestions for Ophelia can be Ophie, Lia, Effy, Fifi, Ophy, or Phe, and pet names for Octavia can be Octi, Tia, Vivi, Ottie, or Tavia.

Infographic: Unique Baby Girl Names With The Letter O

Some letters lead to unique names, and the letter O is one of them. Many parents consider naming their child with a name beginning with this later for this will make their name truly unique. If you want to find names with a suitable meaning that begins with the letter O, we can be of help. Read through the infographic below as we present names for your beautiful baby girl.

outstanding baby girl names with the letter o (infographic)

References

MomJunction's articles are written after analyzing the research works of expert authors and institutions. Our references consist of resources established by authorities in their respective fields. You can learn more about the authenticity of the information we present in our editorial policy.

The Origin of the Alphabet.
https://webspace.ship.edu/cgboer/alphabet.html
Popular Names in 2000.
https://www.ssa.gov/cgi-bin/popularnames.cgi

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Author Editor Fact Checker

Kavita KankaniMBA, BEd

Kavita has a diverse background in finance, human resources, and teaching. She did her MBA in Finance and HR at Solapur University, and bachelor in Education at Pune University. After working for three years in the banking industry, Kavita took up teaching before moving to writing.

Read full bio of Kavita Kankani

Rebecca MalachiBSc

Rebecca is a pregnancy writer and editor with a passion for delivering research-based and engaging content in areas of fertility, pregnancy, birth, and post-pregnancy. She did her graduation in Biotechnology and Genetics from Loyola Academy, Osmania University and obtained a certification in ‘Nutrition and Lifestyle in Pregnancy’ from Ludwig Maximilian University of Munich (LMU).

Read full bio of Rebecca Malachi

Apoorva KMSc (Counseling Psychology)

Apoorva is a certified psychological counselor and NLP practitioner. The assistant professor-turned-writer believes that her experience as a teacher, psychologist, and researcher enables her to guide MomJunction readers on child development and mental health.

Read full bio of Apoorva K