You'll find the Baby Boys Names below.

Baby Boys Names that begin with O
Name	Gender	Origin	Meaning
Oakes	boy	English	from the oak-tree grove
Oakley	boy	Old English	from the oak meadow
Obadiah	boy	Hebrew	servant of God
Obelix	boy	Greek	pillar of strength
Obiajulu	boy	African	the heart is consoled
Ochen	boy	Ugandan	one of the twins
Octavius	boy	Latin	eighth child
Odön	boy	Hungarian	keeper of the fief
Oddvar	boy	Norse	the spear's point
Odell	boy	Old German, Greek, Danish	little wealthy one; ode; otter
Odil	boy	French	rich
Odin	boy	Norse	head God in Norse mythology
Odion	boy	Nigerian	first of twins
Odon	boy	Hungarian	wealthy protector
Odysseus	boy	Greek	full of wrath
Ogden	boy	Old English	from the oak valley
Ogilvy	boy	Old Scottish	from the high peak
Oguz	boy	Hungarian	arrow
Okan	boy	Turkish	unknown
Olaf	boy	Old Norse	talisman, ancestor
Olcay	boy	Turkish	unknown
Oldrich	boy	Czech	one with riches and power
Oleg	boy	Slavic	one who is holy
Oleos	boy	Spanish	holy oil used in church
Olier	boy	Breton	unknown
Olin	boy	Old English	holly
Oliver	boy	Old Norse, Latin, Old French	kind one; olive tree, peace
Omar	boy	Arabic, Hebrew, German	first son, disciple; gifted speaker; famous
Omarjeet	boy	Hindu	unknown
Ompoly	boy	Hungarian	Ampleumian
Ond	boy	Hungarian	tenth child
Onur	boy	Turkish	unknown
Oran	boy	Gaelic, Hebrew	pale one; pine
Orbán	boy	Hungarian	citydweller, educated man
Orelious	boy	unknown	unknown
Oren	boy	Hebrew, Gaelic	ash-tree, pale; pine tree
Orion	boy	Latin, Greek	dawn, east; son of fire, the hunter
Orkény	boy	Hungarian	frightening man
Orlando	boy	Latin	bright sun
Orman	boy	Old English	spearman
Ormos	boy	Hungarian	like a cliff
Orrin	boy	Greek	mountain
Ors	boy	Hungarian	man, hero
Orson	boy	Old English, Latin	spearman's son; bear
Orville	boy	Old French	from the golden village
Osaze	boy	Hebrew	favoured by God
Osbert	boy	Old English	inspired, divine
Osborne	boy	Hebrew	soldier of God
Oscar	boy	Old Norse	divine spear
Osmond	boy	Old English	God protector
Ossian	boy	Latin	fawn
Oswald	boy	Old English	divinely powerful
Oswin	boy	Old English	God friend
Oszlár	boy	Hungarian	unknown
Otis	boy	Greek, Old German	acute; wealthy
Ove	boy	Norse	awe, the spear's point
Ovid	boy	Latin	lamb
Owen	boy	Old Welsh, Greek	warrior; well born
Oxford	boy	Old English	from where the oxen ford
Oz	boy	Hebrew	strength
Ozan	boy	Turkish	unknown
Ozaner	boy	Turkish	unknown
Ozor	boy	Hungarian	name of an ethnic group
Ozséb	boy	Hungarian	pious
Ozsvát	boy	Hungarian	deity, might