Boy Names That Start with O

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The letter “O” brings with it an air of originality and distinction. Often overlooked in favor of more common initials, “O” names stand out with an orotund quality that resonates with charisma and elegance.

Through this article, we’ll explore the opulence of boy names that start with “O,” from the classic Oliver to the less common Otis and Oswald.

Discover the rich histories, meanings, and global influences that shape these names, offering a diverse range of options for your soon-to-arrive bundle of joy.

Boy Names That Start with O

Oliver Meaning: Olive tree Origin: English

Last names Nicknames Sibling names Middle names First names Similar names

Owen Meaning: Young warrior Origin: Welsh

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Oscar Meaning: Deer lover / God spear Origin: Irish / Norse

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Orson Meaning: Bear cub Origin: Latin

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Orion Meaning: Hunter Origin: Greek

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Otis Meaning: Wealthy Origin: German

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Orlando Meaning: Famous land Origin: Italian

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Osman Meaning: God's protection Origin: Norse / English

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Oisin Meaning: Little deer Origin: Irish

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Odin Meaning: Frenzy, rage Origin: Norse

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Octavian Meaning: Eighth Origin: Latin

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Osiris Meaning: With strong eyesight Origin: Egyptian

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Osvaldo Meaning: God's power Origin: Italian

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Oakes Meaning: Near oak trees Origin: English

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Oakley Meaning: Oak tree meadow Origin: English

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Obadiah Meaning: Servant of God Origin: Hebrew

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Oberon Meaning: Noble, bearlike Origin: German

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Obert Meaning: Wealthy, bright Origin: German

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Ocean Meaning: Sea Origin: Greek

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Octavio Meaning: Eighth Origin: Spanish

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Odell Meaning: Woad hill Origin: English

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Odhran Meaning: Little sallow one Origin: Irish

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Odo Meaning: Wealthy Origin: German

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Odon Meaning: Wealthy protector Origin: Hungarian

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Odran Meaning: Pale green Origin: Irish

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Ogden Meaning: Oak valley Origin: English

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Oleg Meaning: Holy Origin: Russian

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Olin Meaning: Ancestor Origin: Swedish

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Olaf Meaning: Ancestor's relic Origin: Norse

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Olan Meaning: Ancestor Origin: Irish

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Olivier Meaning: Olive tree Origin: French

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Omri Meaning: Life Origin: Hebrew

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Onyx Meaning: Claw / fingernail Origin: Greek

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Ophir Meaning: Gold Origin: Hebrew

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Ora Meaning: Prayer Origin: Latin / Hebrew

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Oral Meaning: Eagle Origin: English

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Oran Meaning: Light, pale Origin: Gaelic

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Oren Meaning: Pine tree Origin: Hebrew

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Orin Meaning: Pale Origin: Irish / Gaelic

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Orland Meaning: Famous land Origin: German

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Orley Meaning: Meadow of the hares Origin: English

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Ormond Meaning: Mountain of bears Origin: English / Gaelic

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Orville Meaning: Golden city Origin: French

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Osbert Meaning: Bright god Origin: English

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Osborn Meaning: Divine bear Origin: Norse

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Osbourne Meaning: Divine bear Origin: English

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Osias Meaning: Salvation Origin: Hebrew

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Oskar Meaning: Friend of deer Origin: Scandinavian

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Osler Meaning: Divine cauldron Origin: English

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Osmar Meaning: Divine glory Origin: English / Norse

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Osmond Meaning: God protector Origin: English

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Ossian Meaning: Little deer Origin: Irish / Scottish

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Oswell Meaning: Divine power Origin: English

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Oswin Meaning: God's friend Origin: English

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Otmar Meaning: Prosperity and fame Origin: German

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Otto Meaning: Wealth Origin: German

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Ove Meaning: Terror Origin: Norse

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Owain Meaning: Young warrior Origin: Welsh

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Oz Meaning: Strength / courage Origin: Hebrew

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Ozan Meaning: Poet Origin: Turkish

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Ozias Meaning: Salvation Origin: Greek

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Ozzy Meaning: Divine spear Origin: English

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Obed Meaning: Servant Origin: Hebrew

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Octavious Meaning: Eighth Origin: Latin

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Olav Meaning: Ancestor's relic Origin: Norse

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Ole Meaning: Ancestor's relic Origin: Scandinavian

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Olindo Meaning: Property Origin: Spanish

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Oliverio Meaning: Olive tree Origin: Spanish

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Olof Meaning: Ancestor's relic Origin: Scandinavian

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Olufemi Meaning: God loves me Origin: Yoruba (African)

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Omari Meaning: God the highest Origin: African

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Oneal Meaning: Son of the champion Origin: Irish

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Onofre Meaning: Peace warrior Origin: Spanish

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Orel Meaning: Eagle Origin: Hebrew

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Oriel Meaning: Gold Origin: Latin

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Origen Meaning: Born of Horus Origin: Greek

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Oris Meaning: Tree Origin: English

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Oro Meaning: Gold Origin: Spanish / Italian

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Orpheus Meaning: Beautiful voice Origin: Greek

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Orran Meaning: Little green one Origin: Irish

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Orrick Meaning: Old oak tree Origin: English

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Orrin Meaning: Tree Origin: English / Gaelic

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Orsen Meaning: Bear cub Origin: French / Latin

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Orsino Meaning: Bear cub Origin: Italian

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Orton Meaning: Shore town Origin: English

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Orval Meaning: Golden village Origin: French

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Orvin Meaning: Spear friend Origin: English

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Orwell Meaning: Branch of the river Origin: English

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Orwin Meaning: Friend of the whales Origin: English

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Oryn Meaning: Pine tree / fair Origin: Hebrew / Gaelic

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Osborne Meaning: Divine bear Origin: Norse

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Osbourn Meaning: Divine bear Origin: English

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Osburn Meaning: Divine warrior Origin: English

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Osgood Meaning: Divine creator Origin: Norse

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Osher Meaning: Happiness Origin: Hebrew

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Osric Meaning: Divine ruler Origin: English

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Osrick Meaning: Divine ruler Origin: English

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Osten Meaning: Respect Origin: Swedish

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Oster Meaning: Easter Origin: German

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Oswald Meaning: Divine power Origin: English

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Otello Meaning: Prosperity Origin: Italian

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Otho Meaning: Wealthy Origin: German

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Ottis Meaning: Wealthy Origin: German

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Ottone Meaning: Wealthy Origin: Italian

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Overton Meaning: Upper town Origin: English

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Owyn Meaning: Young warrior Origin: Welsh

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Oxford Meaning: Ford of the oxen Origin: English

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Oxley Meaning: Ox clearing Origin: English

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Oziel Meaning: Strength from God Origin: Hebrew

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Ozzie Meaning: Divine spear Origin: English

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Ogilvy Meaning: High peak Origin: Scottish

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Ogdan Meaning: Oak valley Origin: English

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Olen Meaning: Relic Origin: Scandinavian

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Olle Meaning: Ancestor's relic Origin: Scandinavian

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Ollis Meaning: Elf warrior Origin: Norse

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Onni Meaning: Happiness Origin: Finnish

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Onslow Meaning: Enthusiast's hill Origin: English

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Opie Meaning: Serpentine Origin: English

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Oras Meaning: Prayer Origin: Latin / Hebrew

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Oriol Meaning: Gold Origin: Catalan

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Orlo Meaning: Gold Origin: Russian

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Orman Meaning: Mariner Origin: French

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Orren Meaning: Pine tree Origin: English

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Orry Meaning: From the Orient Origin: Manx

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Orsolya Meaning: Little she-bear Origin: Hungarian

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Ortzi Meaning: Sky Origin: Basque

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Orwel Meaning: Branch of the river Origin: English

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Os Meaning: God Origin: Norse

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Osbaldo Meaning: Divine power Origin: Italian / Spanish

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Oscer Meaning: Divine spear Origin: English

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Ossie Meaning: Divine spear Origin: English

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Ostyn Meaning: Respected or venerable Origin: English

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Oswaldo Meaning: God's power Origin: German

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Othello Meaning: Prosperous Origin: Italian

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Ourson Meaning: Little bear Origin: French

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Oved Meaning: Worker Origin: Hebrew

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Ovila Meaning: Ovillus (meaning unknown) Origin: Latin

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Owin Meaning: Young warrior Origin: Welsh

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Owney Meaning: Ancient Origin: Irish

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Owsley Meaning: Meadow of the wise Origin: English

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Obie Meaning: Servant of God Origin: Hebrew

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Ocie Meaning: Ocean Origin: American

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Odi Meaning: Wealthy Origin: English

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Ody Meaning: Wealthy Origin: English

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Ogilvie Meaning: High peak Origin: Scottish

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Ohad Meaning: United Origin: Hebrew

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Ohannes Meaning: God is gracious Origin: Armenian

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Oke Meaning: Oak Origin: English

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Okes Meaning: Little oak Origin: English

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Oktay Meaning: Born in October Origin: Turkish

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Ola Meaning: Ancestor's relic Origin: Scandinavian

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Olayinka Meaning: Wealth surrounds me Origin: Yoruba (African)

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Olbar Meaning: Might of the continent Origin: German

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Olcott Meaning: Old cottage Origin: English

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Olegario Meaning: Holy warrior Origin: Spanish

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Oles Meaning: Holy Origin: Polish

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Olie Meaning: Olive tree Origin: English

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Olis Meaning: Elf warrior Origin: Norse

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Olliver Meaning: Olive tree Origin: English

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Olmo Meaning: Elm tree Origin: Italian

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Olson Meaning: Son of Olaf Origin: Scandinavian

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Olympio Meaning: From Mount Olympus Origin: Greek

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Olzan Meaning: Not available Origin: -

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Omara Meaning: Long life Origin: African

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Omarr Meaning: Speaker Origin: Hebrew

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Omer Meaning: Sheaf of grain Origin: Hebrew

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Omero Meaning: Pledge or hostage Origin: Italian

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Onfroi Meaning: Peaceful warrior Origin: French

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Opa Meaning: Grandfather Origin: German

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Opal Meaning: Gem, stone Origin: Sanskrit

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Ophelos Meaning: Help Origin: Greek

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Oratio Meaning: Prayer Origin: Latin

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Orban Meaning: City dweller Origin: Latin

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Ord Meaning: Hammer Origin: Norse

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Ordell Meaning: Beginning Origin: German

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Orden Meaning: Order Origin: English

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Ordway Meaning: Warrior armed with a spear Origin: English

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Orelious Meaning: Golden Origin: Latin

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Orello Meaning: Eagle Origin: Latin

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Orest Meaning: Mountain dweller Origin: Greek

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Orestes Meaning: Mountain man Origin: Greek

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Ori Meaning: My light Origin: Hebrew

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Orien Meaning: The Orient; East Origin: Latin

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Orjan Meaning: Farmer Origin: Swedish

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Orlandis Meaning: Famous land Origin: American

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Orly Meaning: You are my light Origin: Hebrew

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Ormand Meaning: Red Origin: English

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Orme Meaning: Dragon Origin: Norse

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Ormerod Meaning: Ridge frequented by ducks Origin: English

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Ornan Meaning: Joyful Origin: Hebrew

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Ornet Meaning: Little eagle Origin: French

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Ornie Meaning: Pine tree Origin: Hebrew

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Oron Meaning: Light, joy Origin: Hebrew

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Orrel Meaning: Eagle Origin: German

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Orrie Meaning: The Orient; East Origin: Latin

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Orris Meaning: Iris root Origin: Latin

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Orsin Meaning: Bear Origin: French

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Ortel Meaning: Plow Origin: German

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Ortho Meaning: Correct, right Origin: Greek

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Orvell Meaning: Golden town Origin: English

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Orvil Meaning: Golden town Origin: English

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Orvyn Meaning: Brave friend Origin: English

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Ory Meaning: Light Origin: Hebrew

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Osaf Meaning: Gatherer Origin: Hebrew

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Osbart Meaning: Bright god Origin: English

Last names Nicknames Sibling names Middle names First names Similar names

Oscan Meaning: Deer friend Origin: Scandinavian

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Osei Meaning: Noble Origin: African

Last names Nicknames Sibling names Middle names First names Similar names

Osgar Meaning: God spear Origin: Norse

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Osheen Meaning: Little deer Origin: Irish

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Oshiro Meaning: Large castle Origin: Japanese

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Oshun Meaning: River deity Origin: Yoruba

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Osiel Meaning: God's salvation Origin: Hebrew

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Osier Meaning: Willow tree Origin: English

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Oskari Meaning: Friend of deer Origin: Finnish

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Osker Meaning: God spear Origin: Norse

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Osred Meaning: Divine counsel Origin: English

Last names Nicknames Sibling names Middle names First names Similar names

Osrik Meaning: Divine ruler Origin: English

Last names Nicknames Sibling names Middle names First names Similar names

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