Baby Boy Names that Start with the Letter O
From Oakes to Ozor and everything in between, hundreds of baby boy names starting with the letter O along with the meanings and origin of each name.
Baby Naming Tip – Consider how long your child’s first name will be and the number of syllables it has. Very long first names when paired with long last names can be difficult to write and fit in forms, and very short ones may sound or look odd when written out. Baby boy names flow best when the number of syllables is different in the first name and last name.
Including Top Baby Boy Names and Unique Baby Boy Names Beginning with O
| 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. |
Om through Oz
| 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. |
| Oszlar | Hungarian | |
| 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 | |
| Ozaner | Turkish | |
| Ozias | Old English | From the ox enclosure. |
| Ozor | Hungarian | name of an ethnic group |
| Ozsvot | Hungarian | deity, might |
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