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Home » Baby Names » Baby Boy Names » Baby Boy Names that Start With O
Baby Boy Names O
Baby Boy Names O

Baby Boy Names that Start With O


Looking for the smartest way to name your baby? Instantly access The Ultimate 2020 Baby Name Survey to learn how hundreds of parents named their babies, what they regret doing, and what they would do again if they were having a baby today.

Simply click here to get the guide.


From Oakes to Ozor and everything in between, hundreds of baby boy names starting with the letter O along with the meanings and origin of each name.

Baby Naming Tip – Consider how long your child’s first name will be and the number of syllables it has. Very long first names when paired with long last names can be difficult to write and fit in forms, and very short ones may sound or look odd when written out. Baby boy names flow best when the number of syllables is different in the first name and last name.

Most Popular Baby Boy Names Starting with O in 2018

First we’ll start with the most popular baby boy names from 2018. They were:

  • Oliver
  • Owen
  • Oscar
  • Omar
  • Orion
  • Odin
  • Otto
  • Oakley
  • Omari
  • Orlando
  • Otis
  • Onyx
  • Osiris
  • Ocean
  • Ollie
  • Osvaldo
  • Oren
  • Oskar
  • Octavio
  • Osman

Oliver was the most popular baby boy name starting with O in 2018.  This should come as no surprise as Oliver has been the most common baby boy name starting with O as far back as 2009. What a run!

Here’s how the top three names have looked over the past decade:

Oliver wasn’t just popular for O boy names in 2018. Overall it was the number 5 most popular name among all baby boy names in 2018. Here’s how it looked when compared to all baby boys born in 2018.

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While Oliver was a popular choice in 2018, you can see it was only about 73% as popular a baby boy name as Noah.   Just for fun, let’s take a look at the most popular baby boy names beginning with O throughout history.

Now let’s look into what boy’s names lost and gained popularity in 2018, again only for names starting with O.

As you can see, Ocean jumped by 7 slots.

Unique Baby Boy Names Starting With O

While it’s fun to see what lots of other people are naming their babies, many people prefer to find baby names that are more uncommon. To that end, below is the some of the more unique baby boy names starting with O.

  • Olin
  • Ozzy
  • Oakland
  • Obadiah
  • Omer
  • Ozias
  • Orin
  • Oaklee
  • Om
  • Oziel
  • Ozzie
  • Orrin
  • Obed
  • Octavius
  • Oden
  • Olivier
  • Osiel
  • Othniel
  • Orson
  • Ori

Overall, Olin was the 1518th most popular boy name in 2018 with 112 babies. That means there were 120x more Olivers than Olins last year. That makes it a very unique name!

If you don’t have your name in mind yet, don’t worry! Below we present a list of literally every baby boy name — including middle names — starting with O, the name’s meaning and origin. Good luck and have a wonderful day.

Oakes through Ogilvie

  • Oakes Middle English — The dweller by the Oak trees.
  • Oakley Middle English — One who lives at the Oak tree meadow.
  • Obadiah Hebrew — The servant of God.
  • Obelix Greek — pillar of strength
  • Oberon   — A character in William Shakespeare’s A Midsummer Night’s Dream.
  • Obert Teutonic — Wealthy and bright.
  • Obiajulu African — the heart is consoled
  • Ochen Ugandan — one of the twins
  • Octavius Latin — The eighth born.
  • Oddvar Norse — the spear?s point
  • Odell Old Norse — Wealthy.
  • Odern Aboriginal — By the sea.
  • Odil French — rich
  • Odin Old Norse — The Scandinavian God of war.
  • Odion Nigerian — first of twins
  • Odolf Teutonic — A noble wolf.
  • Odon Hungarian — wealthy protector
  • Odysseus Greek — full of wrath
  • Ogden Old English — From the valley of Oak trees.
  • Ogilvie Celtic — From the high hill.

Ogilvy through Ond

  • Ogilvy Old Scottish — from the high peak
  • Oglesby Old English — Awe-inspiring.
  • Oguz Hungarian — arrow
  • Okan Turkish
  • Okely Middle English — One who lives at the Oak tree meadow.
  • Okko Finnish — From the name Oscar.
  • Olaf Old Norse/Scandinavian — Ancestor.
  • Olcay Turkish
  • Oldrich Czech — one with riches and power
  • Oleg Russian — The name of an early prince of Kiev.
  • Oleos Spanish — holy oil used in church
  • Olier Breton
  • Olin Old English — holly
  • Oliver Latin — An Olive tree or branch. A symbol of peace.
  • Olivier   — From Shakespeare’s play As You Like It.
  • Ollie   — An Olive tree or branch. A symbol of peace.
  • Omar Arabic — First born son.
  • Omarjeet Hindu
  • Ompoly Hungarian — Ampleumian
  • Ond Hungarian — tenth child

Onslow through Ormos

  • Onslow Old English — The hill of the zealous one.
  • Onur Turkish
  • Ora Latin/Polynesian — Latin: Light, golden. Polynesian: Life. A boy or girl’s name.
  • Orad Aboriginal — Earth.
  • Oram Old English — From the enclosure by the riverbank.
  • Oran Irish Gaelic — Pale-skinned.
  • Orazio Italian — From a Roman family name.
  • Orban Hungarian — A city dweller.
  • Ordway Old English — The spear fighter.
  • Orelious Orelius
  • Oren Hebrew — A tree. Also see Oran.
  • Orestes Greek — A man of the mountain. A hero of Greek mythology.
  • Orfeo Italian — A name from ancient mythology.
  • Orford Old English — A dweller at the ford.
  • Orion Greek — The son of light. The name of a constellation.
  • Orlan Old English — From the pointed land. A boy or girl’s name.
  • Orlando Italian — Italian form of Roland. Famed throughout the land. The name of Shakespeare’s hero in As You Like It.
  • Orman Old English — spearman
  • Ormond Old English — A spearman.
  • Ormos Hungarian — like a cliff

Oroiti through Oskari

  • Oroiti Polynesian — The slow-footed one.
  • Orpheus Greek — A name from ancient mythology.
  • Orran Irish Gaelic — Pale-skinned.
  • Orren Irish Gaelic — Pale-skinned.
  • Orrin Irish Gaelic — Pale-skinned.
  • Orsen Old French from Latin — A little bear.
  • Orsino   — A little bear.
  • Orson Old French from Latin — A little bear.
  • Orton Old English — From the farm by the river.
  • Orville Old French — Golden city.
  • Orvin Old English — A spear friend.
  • Osaze Hebrew — favoured by God
  • Osbert Old English — Divinely bright or famous.
  • Osborn Old English — A divine warrior.
  • Osborne Hebrew — soldier of God
  • Oscar Old English — A divine spearman.
  • Osgood Old Norse — A pagan god.
  • Osip Russian — God shall add.
  • Oskar German — A divine spearman.
  • Oskari Finnish — A divine spearman.

Osman through Oz

  • Osman Arabic — An Ottoman Turk, or a servant of God.
  • Osmar Old English — Divinely glorious.
  • Osmond Old English — A divine protector.
  • Osric Old English — A divine ruler.
  • Ossian Latin — fawn
  • Oswald Old English — Divinely powerful.
  • Oswin Old English — A friend of God, or a divine friend.
  • Oszlar Hungarian
  • Otello Italian — Italian forms of Otto. Rich, prosperous.
  • Othello Italian — Prosperous.
  • Otis Greek — Keen of hearing.
  • Ottavio Italian — The eighth born.
  • Otto Teutonic — Rich, prosperous.
  • Otway Teutonic — Fortunate in battle.
  • Ove Scandinavian — A well-known Scandinavian name.
  • Ovid Latin — lamb
  • Owen Welsh — Well-born. Also a Welsh form of John (see Evan).
  • Oxford Old English — From the ford of the oxen. An English university city.
  • Oxton Old English — From the ox enclosure.
  • Oz Hebrew — strength

Ozan through Ozsvot

  • Ozan Turkish
  • Ozaner Turkish
  • Ozias Old English — From the ox enclosure.
  • Ozor Hungarian — name of an ethnic group
  • Ozsvot Hungarian — deity, might

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Baby Boy Names List

Baby Boy Names A Baby Boy Names B Baby Boy Names C
Baby Boy Names D Baby Boy Names E Baby Boy Names F
Baby Boy Names G Baby Boy Names H Baby Boy Names I
Baby Boy Names J Baby Boy Names K Baby Boy Names L
Baby Boy Names M Baby Boy Names N Baby Boy Names O
Baby Boy Names P Baby Boy Names Q Baby Boy Names R
Baby Boy Names S Baby Boy Names T Baby Boy Names U
Baby Boy Names V Baby Boy Names W Baby Boy Names X
Baby Boy Names Y Baby Boy Names Z

Category: Baby Boy Names

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