Names for boys that start with O are having a revival, with many older names finding popularity again in modern times. ‘O’ names can be cool and cute, or elegant and sophisticated, but are always unforgettable.
Why Choose a Boy Name Beginning with O?
‘O’ names for boys have a feeling of old-world glamour to them and a timelessness that means they will be memorable throughout your little man’s whole life. Some are hip and modern, others are lyrical and romantic. Popular boy names that start with ‘O’ include Oliver, Owen, Oscar, Omar, and Orion. Unique boy names that start with ‘O’ include Oakley, Onyx, Orlando, Ocean, and Ozzy.
If you are looking for the perfect ‘O’ name to go well with your surname, match with a parent or grandparent, or pair beautifully with a sibling, you will find the perfect choice here. For something rare, masculine, and incredibly cool for your little man, check out the list below.
Boy Names that Start with O
If you love the idea of an ‘O’ name for your little man, we have all the names you need to see.
- Oliver
- Owen
- Oscar
- Omar
- Orion
- Odin
- Otto
- Oakley
- Omari
- Onyx
- Otis
- Orlando
- Ocean
- Osiris
- Ozzy
- Ollie
- Osman
- Oskar
- Octavio
- Oren
- Osvaldo
- Oakland
- Orson
- Obadiah
- Ozias
- Olin
- Octavius
- Ozzie
- Orin
- Oden
- Oziel
- Om
- Oaklee
- Omarion
- Omer
- Osiel
- Obed
- Orrin
- Ori
- Oziah
- Osmar
- Octavian
- Oswaldo
- Oaklen
- Olivier
- Opie
- Oshea
- Ollivander
- Omega
- Odysseus
- Omri
- Oak
- Oaklyn
- Ojas
- Olen
- Oslo
- Oswald
- Othniel
- Oryan
- Osias
- Oumar
- Oz
- Oaklan
- Olsen
- Oisin
- Odell
- Omere
- Osiah
- Ousmane
- Octavious
- Oryn
- Othman
- Otoniel
- Olliver
- Omir
- Oswin
- Ole
- Owyn
- Ozan
- Oaks
- Odyn
- Olan
- Olyver
- Osborne
- Odis
- Orlin
- Oseas
- Olvin
- Oberon
- Oluwatobi
- Orian
- Osbaldo
- Owais
- Omid
- Orhan
- Oseias
- Oaken
- Ogden
- Ollin
- Ostin
- Ovadia
- Oaklin
- Obi
- Obinna
- Olson
- Oran
- Oxford
- Onix
- Oriel
- Obsidian
- Olivia
- Olly
- Oneal
- Orville
- Oshay
- Osmin
- Othello
- Ovidio
- Oasis
- Obie
- Oli
- Ousman
- Oakes
- Olamide
- Oluwafemi
- Omi
- Omkar
- Onur
- Orien
- Oaklynd
- Oday
- Olaoluwa
- Olawale
- Olivander
- Oluwadarasimi
- Oluwaferanmi
- Oluwakorede
- Oluwanifemi
- Omani
- Osmond
- Owin
- Ozymandias
- Oaklynn
- Ocyrus
- Olli
- Oluwademilade
- Oluwatoni
- Olyn
- Omni
- Oneil
- Ontario
- Onyekachi
- Osama
- Osaze
- Oshae
- Oshen
- Ottis
- Oakly
- Obaloluwa
- Obidiah
- Obrian
- Odie
- Odyssey
- Olaf
- Olajuwon
- Oleg
- Olumide
- Oluwadamilola
- Oluwatobiloba
- Omaree
- Omarii
- Omen
- Onesimus
- Oreoluwa
- Orry
- Osher
- Osian
- Owynn
- Oxley
- Obediah
- Oberyn
- Ociel
- Oconnor
- Octavion
- October
- Odinn
- Ohaji
- Ohm
- Oleksandr
- Olijah
- Olivar
- Olive
- Oliwer
- Oliwier
- Olman
- Oluwafikayomi
- Oluwaseyi
- Omair
- Omauri
- Omran
- Ondre
- Ondreaz
- Onias
- Or
- Orie
- Orlan
- Orren
- Orvin
- Osaid
- Oshun
- Ovie
- Ozell
- Ozric
- Obai
- Obryan
- Octaviano
- Odhran
- Ohene
- Olando
- Oliverjames
- Oluwatimileyin
- Oluwatosin
- Omeir
- Oni
- Onni
- Onyxx
- Orazio
- Orland
- Orlo
- Osaretin
- Osbourne
- Oshai
- Osirus
- Osmel
- Ostap
- Ostyn
- Osvin
- Otavio
- Otilio
- Otter
- Owain
- Owens
- Ozil
- Ozman
- Ozni
- Oakleigh
- Oba
- Obada
- Obafemi
- Obaid
- Obaida
- Obama
- Oban
- Obbie
- Obdulio
- Obet
- Obeth
- Obichukwu
- Obiora
- Obrien
- Obryant
- Obsa
- Ocelotl
- Ocie
- Oconner
- Octavien
- Octavis
- Odai
- Odalis
- Odarius
- Odel
- Odera
- Odilon
- Odon
- Odonis
- Odynn
- Oen
- Ofa
- Ofek
- Ofir
- Ogechukwu
- Oghenebrume
- Ogheneruno
- Oghenetega
- Oguz
- Oh
- Ohad
- Ohan
- Ohani
- Oheneba
- Ohitika
- Ohlin
- Ojani
- Ojany
- Okan
- Okechukwu
- Oladeji
- Oladimeji
- Oladipo
- Olalekan
- Olamilekan
- Olamiposi
- Olanrewaju
- Olaoluwakitan
- Olasubomi
- Olasunkanmi
- Olatomiwa
- Olatunde
- Olayinka
- Olbin
- Oldair
- Olegario
- Olek
- Oleksiy
- Olias
- Oliber
- Olie
- Olisaemeka
- Oliverio
- Olle
- Ollis
- Ollyver
- Olufemi
- Olujimi
- Olukayode
- Olumuyiwa
- Olurotimi
- Olusegun
- Oluseyi
- Oluwadamilare
- Oluwadara
- Oluwadurotimi
- Oluwafikayo
- Oluwafolahanmi
- Oluwafolajimi
- Oluwajoba
- Oluwajomiloju
- Oluwakayode
- Oluwalonimi
- Oluwamayomikun
- Oluwamayowa
- Oluwapelumi
- Oluwasegun
- Oluwasemilore
- Oluwaseun
- Oluwaseyifunmi
- Oluwatamilore
- Oluwateniola
- Oluwatimilehin
- Oluwatise
- Oluwatoba
- Oluwatofunmi
- Oluwatomi
- Oluwatomisin
- Oluwatomiwa
- Oluwatoniloba
- Oluyemi
- Omaid
- Oman
- Omare
- Omareon
- Omarian
- Omarie
- Omarien
- Omario
- Omarious
- Omarius
- Omariyon
- Omarr
- Omarri
- Omarrion
- Omaru
- Omary
- Omaryon
- Omaurion
- Omaury
- Omed
- Omeed
- Omero
- Ommar
- Omorion
- Omotayo
- Onaje
- Onan
- Onasis
- Ondra
- Ondrej
- Oneill
- Onel
- Onesimo
- Oniel
- Onir
- Onkar
- Onofre
- Ontarius
- Onterrio
- Onyedikachi
- Onyekachukwu
- Opeyemi
- Ophir
- Optimus
- Ora
- Oracio
- Oral
- Orbelin
- Orbin
- Orel
- Orenthal
- Oreofeoluwa
- Orest
- Orestes
- Oriah
- Orik
- Oriyan
- Orlandis
- Orlandus
- Orlondo
- Orlyn
- Ormond
- Oronde
- Orran
- Orrick
- Orrie
- Orryn
- Orsen
- Ory
- Oryen
- Oryon
- Osa
- Osagie
- Osahon
- Osamah
- Osbert
- Osborn
- Oscarjr
- Osceola
- Osciel
- Osean
- Osei
- Osha
- Oshane
- Oshawn
- Osinachi
- Osker
- Osmani
- Osmany
- Osmund
- Oso
- Osric
- Ossama
- Ossian
- Ossie
- Ossiel
- Osteen
- Osten
- Osualdo
- Osyris
- Osyrus
- Otha
- Othon
- Othoniel
- Otniel
- Ottavio
- Ottoniel
- Ousainou
- Oved
- Overton
- Owan
- Owenn
- Owsley
- Oyindamola
- Ozai
- Ozair
- Ozie
- Ozion
- Ozkar
- Ozlo
- Ozmar
- Ozvaldo
- Ozwald
- Ozzi
- Ozziel
Random Baby Name Generator
Our baby name generator will give you lots of ideas for boy names. Add your last name, and select a theme to find a baby name.
→ See the Baby Name Generator
More Lists:
Famous Celebrity Boys with Names Starting with O
If you are still trying to find that one special name that perfectly epitomizes everything you want your little boy to be, take a leaf from the book of some of these stars.
Oscar is always a strong classic name and still very popular, as chosen by Gordon and Tana Ramsey for their boy, and with an alternate spelling as Nate Berkus and Jeremiah Brent chose for their little boy Oskar Michael.
We are also entranced by the coolness of Otto for a baby boy, which was chosen by Rachel Harris and Christian Hebel for their son.
Paz Vega and Orson Salazar decided to name their baby boy Orson.
Shiri Appleby and Jon Shook gave their son the classic name Owen Lee.
Taylor Hawkins chose the chic name, Oliver Shane for their son.
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