749 Unique Boy Names That Start With O

Baby boy names starting with the letter O can make your child stand out from the crowd. The letter O of the English alphabet corresponds to the Semitic ‘ayin,’ and its form is believed to have been inspired by a sign representing the human eye. Across various cultures, names beginning with O hold diverse meanings and associations. For instance, the masculine name Omar, derived from Arabic, signifies ‘flourishing’ or ‘long-lived,’ reflecting positive aspirations for the namesake. These names are also deeply rooted in history, symbolizing strong connections to their respective heritages and traditions. According to the SSA, names such as the Latin Oliver (olive tree planter) and the Welsh Owen (of noble birth) have continued to top the popularity charts over the last couple of decades in the US (1).

Now that we’ve given you a sneak peek at this letter, it’s time to check out some O-names. From Oaghavanth to Onir and beyond, here are some distinct names beginning with the letter O. Take a look.

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Name Gender Meaning
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Oliver
Baby Boy Sign Boy Olive; Olive tree planter; Ancestor's descendant; All cautious
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Oscar
Baby Boy Sign Boy God's spear; Friend of deer
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Omar
Baby Boy Sign Boy Flourishing; Long-lived; Wealthy; Famous; Eloquent; Gifted
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Odin
Baby Boy Sign Boy Inspiration; Frenzy; Rage
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Omari
Baby Boy Sign Boy Populous; Flourishing; Full of life
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Otis
Baby Boy Sign Boy Wealth; Son of Ode
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Ozzy
Baby Boy Sign Boy Powerful God; Divine ruler; God's spear
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Orlando
Baby Boy Sign Boy Famous in the land
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Osiris
Baby Boy Sign Boy Mighty eye; God of fertility, agriculture, and the afterlife
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Ozias
Baby Boy Sign Boy My power is Yahweh; Strength; Power; Salvation
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Oskar
Baby Boy Sign Boy God's spear; Deer's friend
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Octavio
Baby Boy Sign Boy Eight or eighth
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Osvaldo
Baby Boy Sign Boy God's power
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Ozzie
Baby Boy Sign Boy Mighty God; Warrior of God
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Obadiah
Baby Boy Sign Boy Serving Yahweh; Yahweh's servant; Worshiper of Yahweh
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Orson
Baby Boy Sign Boy Bear cub; Ormond's son
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Octavius
Baby Boy Sign Boy Eight or eighth
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Oden
Baby Boy Sign Boy Inspiration; Frenzy; Rage
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Osiel
Unisex Baby Sign Unisex My power is God
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Om
Baby Boy Sign Boy Sacred syllable; Primordial sound
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Oziel
Unisex Baby Sign Unisex My power is Yahweh; Strength; Power; Salvation
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Octavian
Baby Boy Sign Boy Eight; Born in the eighth month; Born eighth
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Orrin
Baby Boy Sign Boy Tan; Greyish brown
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Olivier
Baby Boy Sign Boy Olive tree; Ancestor's descendant; Planter of olive trees; All cautious
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Oswald
Baby Boy Sign Boy God's power; Mighty god
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Ori
Baby Boy Sign Boy My light
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Oswaldo
Baby Boy Sign Boy One who is born with divine power
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Oshea
Baby Boy Sign Boy Salvation
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Omri
Baby Boy Sign Boy Package of several things tied together; Life; Servant
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Oziah
Unisex Baby Sign Unisex Salvation; The strength of the Lord; Helper
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Omarion
Baby Boy Sign Boy Populous; Flourishing
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Othniel
Baby Boy Sign Boy Lion of God; Strength of God
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Olen
Baby Boy Sign Boy Ancestor's descendant
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Osmar
Baby Boy Sign Boy Famous God
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Odysseus
Baby Boy Sign Boy To hate or lament
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Oberon
Baby Boy Sign Boy Elf ruler; King of elves; Royal bear
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Ojas
Baby Boy Sign Boy Vitality; Power; Physical strength
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Oz
Baby Boy Sign Boy God; Strength
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Olliver
Baby Boy Sign Boy Olive; Olive tree; Ancestor's descendant; All cautious; Elf warrior
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Obi
Baby Boy Sign Boy Heart; Yahweh's servant; Worshiper of Yahweh
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Ousmane
Unisex Baby Sign Unisex Baby bustard; Wise; Dragon cub; Powerful
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Othman
Baby Boy Sign Boy A brave person and the chosen one
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Olan
Baby Boy Sign Boy Grand; Great; Enormous; Echo; Reflection
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Ollivander
Baby Boy Sign Boy He who owns the olive wand
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Ostin
Baby Boy Sign Boy Great; Magnificent; Exalted; Venerable
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Oisin
Baby Boy Sign Boy Little deer
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Ole
Baby Boy Sign Boy Ancestor's descendant
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Omir
Baby Boy Sign Boy Populous; Flourishing
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Obert
Baby Boy Sign Boy The one who believes that there is only One Allah
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Oakes
Baby Boy Sign Boy Oak tree; Someone who lived near an oak tree; Son of Dubhdara
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Orhan
Baby Boy Sign Boy Ruler of the city; Great leader
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Osias
Baby Boy Sign Boy Salvation; God saves
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Owais
Baby Boy Sign Boy A wolf
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Olyver
Baby Boy Sign Boy ELF cadre or the same as the olive tree
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Ovidio
Baby Boy Sign Boy Like a sheep
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Ozan
Baby Boy Sign Boy A bard
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Osmin
Baby Boy Sign Boy The one under God's protection
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Obie
Baby Boy Sign Boy God's servant; Worshipping; Elf ruler
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Olivander
Baby Boy Sign Boy The one who shelters the olive tree
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Orville
Baby Boy Sign Boy Town or city filled with golden treasuries
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Osmond
Baby Boy Sign Boy God's protection
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Obama
Baby Boy Sign Boy Crooked or bent
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Oso
Unisex Baby Sign Unisex Bear
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Osborne
Baby Boy Sign Boy The warrior of God's army; The spiritual bear
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Ovie
Baby Boy Sign Boy King
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Oday
Baby Boy Sign Boy Runner; Rising
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Ontario
Baby Boy Sign Boy Beautiful lake
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Oswin
Baby Boy Sign Boy God's friend
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Oxford
Baby Boy Sign Boy Oxen crossing; From Oxford
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Olvin
Unisex Baby Sign Unisex King of Archenland
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Oneil
Unisex Baby Sign Unisex Descendant of Neil
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Ovadia
Baby Boy Sign Boy A servant of God
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Oreste
Baby Boy Sign Boy A huge rugged one
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Osama
Baby Boy Sign Boy Lion; Majestic
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Osbaldo
Baby Boy Sign Boy Mighty God
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Ottis
Baby Boy Sign Boy Wealth; Son of Ode
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Ottmar
Baby Boy Sign Boy A wealthy and prosperous individual
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Otoniel
Baby Boy Sign Boy Lion of God; Strength of God
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Ousman
Baby Boy Sign Boy Baby bustard; Wise; Dragon cub
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Okey
Baby Boy Sign Boy A bright shining light that is pleasing to the eyes
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Orval
Baby Boy Sign Boy A town of Gold
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Odis
Baby Boy Sign Boy Wealth; Fortune
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Ogden
Baby Boy Sign Boy Oak valley
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Othello
Baby Boy Sign Boy Wealth
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Obaloluwa
Baby Boy Sign Boy God is the king
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Omni
Baby Boy Sign Boy All; Universal
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Omran
Baby Boy Sign Boy Exalted nation
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Ozymandias
Baby Boy Sign Boy Ancient Egyptian regnal name or title of Pharaoh Ramesses II
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Odilon
Baby Boy Sign Boy Heritage; Wealth; Fortune
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Ommar
Baby Boy Sign Boy The one who born as the first boy in the family, the eldest son
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Oris
Baby Boy Sign Boy Tree
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Otho
Baby Boy Sign Boy Wealth; Prosperity
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Oban
Baby Boy Sign Boy The little bay
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Oleg
Baby Boy Sign Boy Holy; Blessed; Sacred
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Onir
Baby Boy Sign Boy Shining; Extraordinary
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Onni
Baby Boy Sign Boy Luck; Cheerfulness; Pleasure
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Orel
Baby Boy Sign Boy Light of God; High mountain; Exalted
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Osric
Baby Boy Sign Boy God's rule; God's power
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Ovi
Baby Boy Sign Boy Poetic stanza of Prakrit verse; Admiration; Sheep
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Olman
Baby Boy Sign Boy Old money; Wealth
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O for optimistic, and so our collection of baby boy names that start with O gives you options with positive meanings. Whether you are looking for short choices such as Oak and Oan or unique names such as Obinna and Ochuko, our above list brings you everything. People in different cultures and religions have used O names for boys, mainly because of their distinctiveness. Keep going through the vast list until you find the best one.

Infographic: Outstanding Boy Names Starting With O

Baby boy names starting with the letter O are uncommon, which accounts for their uniqueness. Despite the rarity, multiple cultures worldwide have names that begin with O. This round, full-sounding vowel gives a pleasant appeal to the names that start with it. You can check out the infographic below to explore some of the top names for boys that begin with O.

handsome boy names that begin with o (infographic)

Illustration: Momjunction Design Team

Frequently Asked Questions

1. What are some names from Bible that start with the letter “O”?

In the Bible, names like Obadiah meaning ‘serving Yahweh,’ Obed meaning ‘worshipping,’ Omar meaning ‘speak,’ Othniel meaning ‘lion of God,’ Ohad meaning ‘united,’ and Omri meaning ‘life’ or ‘servant’ are significant.

2. Can I use a baby boy's name starting with O for a girl?

Unisex names like Oaklee, meaning ‘oak clearing,’ Och meaning ‘the sparkle of the loved ones,’ Orphie meaning ‘fawn,’ Orel meaning ‘golden,’ and Odgerel, meaning ‘starlight,’ are some extraordinary names that you can consider for your little princess.

3. How do I choose the right baby boy name that starts with O?

Various factors like preferences, family traditions, and cultural background depend on choosing the right name for your little one. You can start by researching the names that start with the letter O. Furthermore, you can look for popular or unique names. Some may prefer popular names, while others prefer a distinctive and exclusive name for their baby boy. Take your time, trust your instincts, and select a name to which you and your partner love and feel connected.

4. What are some popular baby boy names that start with O?

Oliver meaning ‘olive tree,’ Oscar, meaning ‘God’s spear,’ Odin, meaning ‘inspiration,’ and Onyx, meaning ‘claw,’ are some popular names you can consider for your little bundle of joy.

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.
  1. Popular names of the period 2010s.
    https://www.ssa.gov/oact/babynames/

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