Appendix:Male given names/O

Oaa-Oaz

 * Oafe
 * Oakes
 * Oakley
 * Oane
 * Oan
 * Oanh
 * Oar
 * Oate

Oba-Obz

 * O.B.
 * Obadiah
 * Obadiyah
 * Obadja
 * Obadyah
 * Obad-Yah
 * Obafemi
 * Obaidullah
 * Obama
 * Oban
 * Obasanjo
 * Obayd
 * Obbe
 * Obdeijn
 * Obdikader
 * Obdulia
 * Obdulio
 * Obe
 * Obed
 * Obeid
 * Obel
 * Obèr
 * Oberg
 * Oberon
 * Obert
 * Oberth
 * Oberto
 * Obe
 * Obi
 * Obias
 * Obidiah
 * Obidinma
 * Obie
 * O'Bie
 * Obied
 * Obil
 * Obi Wan
 * Oblak
 * Oblom
 * Обмен
 * Obmen
 * Oborne
 * Obote
 * Obrad
 * Obrecht
 * Oburn

Oca-Ocz

 * Öcal
 * Ocan
 * Occelo
 * Occy
 * Ocean
 * Océan
 * Oceanus
 * Ochiebgu
 * Ochoa
 * Ocie
 * Ock
 * Ocke
 * Ockel
 * Ocker
 * Ocki
 * Ockel
 * Ocker
 * Ocko
 * Octaaf
 * Octave
 * Octaviaan
 * Octavian
 * Octaviano
 * Octavianus
 * Octavien
 * Octavio
 * Octaviu
 * Octavious
 * Octavius
 * Octavo
 * Octavus
 * October
 * Octous

Oda-Odz

 * Oda
 * Odah
 * Odd
 * Oddi
 * Odd Magnus
 * Oddo
 * Oddone
 * Oddur
 * Oddvar
 * Ode
 * Oded
 * Odel
 * Odelin
 * Odell
 * Oden
 * Odert
 * Odet
 * Odger
 * Odhrán
 * Odi
 * Ödi
 * Odie
 * Odilo
 * Odilon
 * Odin
 * Oðinn
 * Odinot
 * Ødipus
 * Odis
 * Odiseo
 * Odisseo
 * Oditz
 * Odo
 * Odoacer
 * Odoakar
 * Odoaker
 * Οδόακρος
 * Odom
 * Odon
 * Ödön
 * O'Donovan
 * Odoric
 * Odorik
 * Odovacer
 * Oduber
 * Odulphus
 * Odusseus
 * Ody
 * Ódysseifs
 * Odysseus

Oea-Oez

 * Oe
 * Oebe
 * Oebel
 * Oebele
 * Oede
 * Oedie
 * Oedin
 * Οιδίποδας
 * Oedipus
 * Oeds
 * Oedze
 * Oefers
 * Oege
 * Oehme
 * Oei
 * Oek
 * Oelderik
 * Oele
 * Oelke
 * Oelof
 * Oelrich
 * Oemar
 * Oemarbek
 * Oemar Said
 * Oene
 * Oene-Wim
 * Oepke
 * Oept
 * Oerleman
 * Oeroeg
 * Oes
 * Oessoep
 * Oetge
 * Oetker
 * Oever
 * Oey

Ofa-Ofz

 * Ofeig
 * Ófeigur
 * עוֹפר
 * Ofer
 * Ofer
 * Offa
 * Offer
 * Offo
 * Offofon
 * Ofir
 * Ofydd

Oga-Ogz

 * Ogan
 * Ogata
 * Ogden
 * Ogedei
 * Oger
 * Oger Sander
 * Oggy
 * Ogi
 * Ogier
 * Ogilvie
 * Ogilvy
 * Ogima
 * Ogjan
 * Ognjen
 * O-Gon
 * Ogre
 * Ogün
 * Oguz
 * Oǧuz
 * Oguzhan
 * Oğuzhan

Oha-Ohz

 * Oh
 * Ohad
 * Ohanneson
 * Ohio
 * Ohl
 * Ohlander
 * Ohle
 * Ohlmann
 * Ohlsen
 * Ohran

Oia-Oiz

 * Oidipos
 * Oidipus
 * Oighrig
 * Oiram
 * Oisin
 * Oisín
 * Oistin
 * Oiva
 * Øivind

Oja-Ojz

 * O.J.
 * Ojai
 * Ojeda
 * Ojer
 * Öjvind
 * Øjvind

Oka-Okz

 * Okacha
 * Okal
 * Okalik
 * Okan
 * Ökan
 * Okatan
 * Okay
 * Oke
 * Okechuku
 * Okey
 * Oki
 * Okihiro
 * Okita
 * Okke
 * Okker
 * Okketje
 * Okki
 * Okkie
 * Okko
 * Okoth
 * Oksa
 * Oktar
 * Oktawiusz
 * Oktawiuszek
 * Oktay
 * Öktem
 * Okwe
 * Oky

Ola-Olz

 * Ol
 * Ola
 * Olaf
 * Ólafr
 * Olafur
 * Ólafur
 * Olai
 * Oland
 * Olathe
 * Olaus
 * Olav
 * Ólav
 * Olave
 * Olavi
 * Olavius
 * OLAVS
 * Olavus
 * Olbert
 * Olberto
 * Olbracht
 * Olcay
 * Olczyk
 * Old
 * Olda
 * Olden
 * Oldert
 * Oldfield
 * Oldig
 * Oldík
 * Oldrich
 * Oldřich
 * Ole
 * Oleak
 * Olearius
 * Olearnik
 * Olee
 * Oleeg
 * Olef
 * Олег
 * Oleg
 * Olegario
 * Olegário
 * Olegarius
 * Oleh
 * Ole Jorgen
 * Ole Jørgen
 * Olek
 * Олександр
 * Oleksandr
 * Oleksándr
 * Oleksii
 * Oleksyk
 * Olen
 * Oles
 * Olesha
 * Oleshka
 * Olevi
 * Олев
 * Olexei
 * Olf
 * Olfert
 * Olfertjan
 * Olff
 * Olger
 * Olgierd
 * Oli
 * Óli
 * Olier
 * Olijve
 * Olimpio
 * Olin
 * Olindo
 * Olivaro
 * Oliver
 * Oliver Rudolf
 * Olivér
 * Oliverius
 * Olivero
 * Olivetto
 * Olivier
 * Oliviero
 * Oliviertje
 * Olke
 * Ollah
 * Olle
 * Ollenius
 * Ollevier
 * Olli
 * Ollie
 * Ollier
 * Ollister
 * Olloso
 * Olly
 * Olman
 * Olmer
 * Ölmez
 * Olmo
 * Olo
 * Olof
 * Oloff
 * Olov
 * Olow
 * Olrik
 * Olphert
 * Olse
 * Olson
 * Oltean
 * Oltman
 * Olubunmi
 * Olumide
 * Oluf
 * Olusegun
 * Oluv
 * Oluwatosin
 * Olwen
 * Olympio
 * Olympiu
 * Olympius
 * Olyn

Oma-Omz

 * Om
 * Oma
 * Omaar
 * Oman
 * عمر
 * Omar
 * 'Omar
 * Ómar
 * Omar Bakri
 * Omari
 * Omarian
 * Omarion
 * Omar Khayyam
 * Omarzad
 * Omat
 * Ombler
 * Omega
 * Omer
 * Ömer
 * Omero
 * Omet
 * Omid
 * Omie
 * Omke
 * Ompaa
 * Ompoly
 * Omte
 * Ömur

Ona-Onz

 * On
 * Onaika_tei
 * Onan
 * Onar
 * Õnar
 * Onasis
 * Onat
 * Onch
 * Oncko
 * Ond
 * Onder
 * Önder
 * Ondra
 * Ondrášek
 * Ondrasik
 * Ondrej
 * Ondřej
 * Ondrej
 * Ondřišek
 * One
 * Oneal
 * Onegin
 * Oner
 * Öner
 * Onesime
 * Onesimo
 * Onesimos
 * Onesimus
 * Onesto
 * Onetto
 * Onfray
 * Ong
 * Onger
 * Oni
 * Onik
 * Онисим
 * Onisim
 * Onkel
 * Onko
 * Önlü
 * Onne
 * Onneke
 * Õnneleid
 * Onni
 * Onnie
 * Onno
 * Onofrio
 * Onorata
 * Onorato
 * Onslow
 * Onsoz
 * Onsy
 * Onta
 * Onte
 * Οντίλο
 * Onufry
 * Onuphire
 * Onuphrius
 * Onur

Ooa-Ooz

 * Oodo
 * Oogje
 * Ooijer
 * Ooldert
 * Oole
 * Oom
 * Oomke
 * Oompie
 * Oonk
 * Oort
 * Oortwijn
 * Oossie
 * Oost
 * Ootah
 * Oote
 * Ootje
 * Oove
 * Oowe

Opa-Opz

 * Opa
 * Opace
 * Opalka
 * Opazo
 * Opeyemi
 * Ophélio
 * Ophelos
 * Ophir
 * Oppe
 * Oppo
 * Oppone
 * Opportune
 * Opportunus
 * Oprando
 * Optimus

Oqa-Oqz

 * Oqais

Ora-Orz

 * Ora
 * Orak
 * Oral
 * Oran
 * Orane
 * Orazio
 * Orban
 * Orbán
 * Orbiana
 * Orbison
 * Orbon
 * Orçun
 * Orde
 * Ordóño
 * Ordway
 * Oréal
 * Ored
 * Oreius
 * Oren
 * Orent
 * Orest
 * Oreste
 * Ορεςτης
 * Orestes
 * Orfeo
 * Orfeu
 * Orfeus
 * Örfygur
 * Orhalla
 * Orhan
 * אורי
 * Ori
 * Oriah
 * Orie
 * Oriel
 * Orien
 * Orin
 * Oringo
 * Orino
 * Orio
 * Oriol
 * Orion
 * Orione
 * Örjan
 * Ørjan
 * Orla
 * Orlando
 * Orleando
 * Orleans
 * Orlee
 * Orley
 * Orli
 * Орлин
 * Orlin
 * Orlo
 * Orly
 * Örlygur
 * Orm
 * Orma
 * Orman
 * Ormand
 * Ormek
 * Ormel
 * Ormerod
 * Ormhel
 * Ormisda
 * Ormond
 * Ormonde
 * Ormrod
 * Ormusd
 * Örn
 * Ørn
 * Orné
 * Örner
 * Ornette
 * Örnólfur
 * Ornstein
 * Örnstein
 * Ørnstein
 * Örnulf
 * Ørnulf
 * Örnulfur
 * Ørnulv
 * Orobio
 * Orock
 * Oron
 * Orono
 * Orozco
 * Orpaz
 * Orphée
 * Orpheo
 * Orpheos
 * Orpheu
 * Orpheus
 * Orr
 * Orré
 * Orren
 * Orrick
 * Orrin
 * Örs
 * Orsen
 * Orsi
 * Orsin
 * Orsini
 * Orsino
 * Orsinus
 * Orsion
 * Orsmond
 * Orso
 * Orson
 * Orson Scott
 * Ortantsja-batyr
 * Ortel
 * Orth
 * Ortho
 * Orti
 * Ortlieb
 * Orton
 * Ortwin
 * Orval
 * Orvan
 * Orvar
 * Órvar
 * Orvil
 * Orville
 * Oryon

Osa-Osz

 * Os
 * Osa
 * Osadze
 * Osam
 * أسامة
 * Osama
 * Osamah
 * Osamu
 * Osaph
 * Osaze
 * Osbeorht
 * Osbert
 * Osborn
 * Osborne
 * Osbourne
 * Oscar
 * Óscar
 * Oscarcito
 * Oscard
 * Ose
 * Osei
 * Osger
 * Osgood
 * Oshe
 * Osho
 * Oshik
 * Oshrin
 * Osiander
 * Osias
 * Osie
 * Osin
 * Osip
 * Osiris
 * Osk
 * Oskam
 * Оскар
 * Oskar
 * Óskar
 * Oskarchen
 * Oskarek
 * Oskárek
 * Oskari
 * Óskar Páll
 * Oskars
 * Oszkár
 * Oslander
 * Öslem
 * Osma
 * Osman
 * Osmand
 * Osment
 * Osmer
 * Osmi
 * Osmond
 * Osmund
 * Osorkon
 * Ospiki
 * Osquel
 * Osram
 * Oss
 * Ossama
 * Ossef
 * Ossege
 * Ossele
 * Ossi
 * Ossian
 * Ossie
 * Ossur
 * Ossy
 * Osten
 * Östen
 * Oster
 * Osvald
 * Osvaldo
 * Oswald
 * Oswaldo
 * Oswaldus
 * Oswallt
 * Oswalt
 * Osweald
 * Oswin
 * Oswink
 * Oszkár

Ota-Otz

 * Ot
 * O-T
 * Ota
 * Otabek
 * Otakar
 * Otakárek
 * Otake
 * Otan
 * Otar
 * Otazu
 * Otch
 * Ote
 * Otellino
 * Otello
 * Otelo
 * Oteo
 * Otero
 * Otfried
 * Otger
 * Oth
 * Otha
 * Othar
 * Othello
 * Othenan
 * عثمان
 * Othman
 * Othmane
 * Othmann
 * Othniel
 * Otho
 * Othon
 * Otie
 * Otík
 * Otis
 * Otje
 * Otley
 * Otman
 * Otmar
 * Oto
 * Otoenbaj
 * Otokar
 * Otokonoko
 * Otomar
 * Otón
 * Otse
 * Ott
 * Ottar
 * Ottaviano
 * Ottavio
 * Otte
 * Otter
 * Ottey
 * Ottho
 * Ottis
 * Ottmar
 * Otto
 * Ottó
 * Ottobono
 * Ottobuono
 * Ottodino
 * Otto-Jan
 * Ottokar
 * Ottolengho
 * Ottoman
 * Ottomar
 * Ottomar Vlad
 * Otton
 * Ottone
 * Ottorino
 * Otum
 * Otunbay
 * Otur
 * Otwin

Oua-Ouz

 * Ouafi
 * Ou-Aissa
 * Ouali
 * Oualim
 * ورىس
 * Ouariach
 * Ouassama
 * Ouassim
 * Ouassini
 * Oud
 * Oudaen
 * Oudolf
 * Ouen
 * Ouiem
 * Ouk
 * Ouke
 * Oukoum
 * Oula
 * Ouled Radi
 * Oulida
 * Oulu
 * Ouranos
 * Ouray
 * Ourikh
 * Ousmane
 * Oussama
 * Ousso
 * Ousu
 * Outalab
 * Ouwe
 * Ouwehands
 * Ouwejan
 * Ouweneel
 * Ouyang
 * Ouziel

Ova-Ovz

 * Ovad
 * Ove
 * Ove Kindvall
 * Over
 * Overton
 * Ovi
 * Ovid
 * Ovide
 * Ovidio
 * Ovidiu
 * Ovidius
 * Oviedo
 * Ovis
 * Ovsenko

Owa-Owz

 * Owain
 * Owe
 * Owein
 * Owen
 * Öwezgeldi
 * Owin
 * Owusu
 * Owyn

Oxa-Oxz

 * Oxe
 * Oxon

Oya-Oyz

 * Oye
 * Oyo
 * Oystein
 * Øystein
 * Øyvind
 * Oyvindur

Oza-Ozz

 * Oz
 * Öz
 * Özada
 * Özalp
 * Ozan
 * Özan
 * Ozawah
 * Özbeg
 * Özbek
 * Özbiçer
 * Ozbiliz
 * Özcan
 * Özdemir
 * Ozdoğan
 * Oze
 * Özen
 * Ozephius
 * Ozer
 * Ozeray
 * Özgun
 * Ozgur
 * Özgür
 * Oziel
 * Özil
 * Ozilio
 * Özkal
 * Ozkan
 * Özkan
 * Ozkaya
 * Özkaya
 * Özler
 * Özmen
 * Özönder
 * Özpamuk
 * Öztaş
 * Öztekin
 * Öztemir
 * Öztüre
 * Ozturk
 * Öztürk
 * Özütok
 * Özyakub
 * Ozymandias
 * Ozwald
 * Özzi
 * Ozzie
 * Ozzy

?

 * Oates
 * Oi Mundo
 * Onann
 * Obelix
 * Олегович
 * Олеговна
 * Orl
 * Ouro