Baby Boy Names - Start with O

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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 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 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 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 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. 
Oszl£r Hungarian  Jazygian 
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 Turkish  ᅱzcan 
Ozaner Turkish   
Ozias Old English  From the ox enclosure. 
Ozor Hungarian  name of an ethnic group 
Ozsvot Hungarian  deity, might