Oakley
From an oak tree forest
Obasi
In God's honor
Oberon
Elf ruler
Obrecht
Known for his inheritance
Ocean
Sea titan
Oceanus
Sea titan
Octavian
Eighth
Octavio
Eighth
Octavius
Eighth
Odalis
Riches
Odell
Hill on which woad grows
Odessa
Filled with wrath
Odin
Fury
Odysseus
To hate
Ogden
From an oak valley
Ogen
Anchor
Oisin
Small deer
Ok
Treasured
Olaf
Descendant of
Olamide
My wealth has come
Olamilekan
My wealth is growing
Olander
Sweden
Olavi
Descendant of
Olavo
Descendent of
Oldrich
Rich heritage
Oldrik
Powerful inheritance
Olek
Defender of man
Olin
Hallowed
Oliver
Elf warrior
Olle
Descendant
Ollie
Olive
Olsen
Ole's son
Oluf
Descendant of
Olufemi
Adored by God
Olufunke
God took care of
Omar
To flourish or to thrive
Omari
To flourish or to thrive
Omen
To be faithful
Omid
Hopeful
Omri
Grain sheaf
Ondrej
Virile, manly
Onofre
Fighter of peace
Onur
Honorable
Onyeka
God is the greatest
Onyekachi
God is the greatest
Ora
Say the prayers
Orange
Orange
Oren
From a pine tree
Ori
Light of mine
Orion
Border or extremity
Orland
Famous land
Orlando
Famous land