Names That Start With O
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If you’re looking for unique names for your baby boy or girl, you have come to the right place! Here is the complete list of unique names, boy names, girl names, and baby boy names. You can also search modern baby boy names starting with O. Check out our alphabetical list and find the fabulous, cute, first name, last name, or surname, and we have compiled names that start with O, precisely for you.
List of Top Baby Names That Start With O
Check out the latest popular girl names and popular boy names below.
| Name | Meaning | Gender |
| Oakley | From The Oak Tree Field | Boy |
| Obadiah | Servant Of God | Boy |
| Obed | Servant, Worshipper | Boy |
| Oberon | Noble Bear | Boy |
| Octavio | Eighth | Boy |
| Odin | Inspiration | Boy |
| Odis | Ardent, Fiery | Boy |
| Oisin | Little Deer | Boy |
| Ojai | Moon | Boy |
| Okey | From The Oak Tree | Boy |
| Olaf | Ancestor’s Descendant | Boy |
| Olden | Ancient, Old | Boy |
| Oliver | Olive Tree | Boy |
| Omar | Flourishing, Long | Boy |
| Onyx | Black Gemstone | Boy |
| Orion | Son Of Fire | Boy |
| Orland | Famous Throughout The Land | Boy |
| Orlando | Famous Throughout The Land | Boy |
| Orlo | Golden | Boy |
| Orson | Bear Cub | Boy |
| Orville | Golden City | Boy |
| Osborn | Divine Bear | Boy |
| Oscar | Divine Spear | Boy |
| Osmond | Divine Protector | Boy |
| Oswald | Divine Ruler | Boy |
| Othello | Prosperous Or Wealthy | Boy |
| Otis | Wealthy, Fortunate | Boy |
| Otto | Wealthy, Prosperous | Boy |
| Owen | Youth Warrior | Boy |
| Ozias | Salvation Of The Lord | Boy |
| Ozzie | Divine Power, Strength | Boy |
| O’Neil | Descendant Of Niall | Boy |
| O’Riley | Descendant Of Raghailleach | Boy |
| O’Shea | Descendant Of Shea | Boy |
| Oak | Strong, Durable | Boy |
| Oakes | From The Oak Trees | Boy |
| Obie | Heart | Boy |
| Odell | Wealthy, Prosperous | Boy |
| Odis | Ardent, Fiery | Boy |
| Ogden | Oak Valley | Boy |
| Ogilvy | From The High Peak | Boy |
| Ohm | Unity, Wholeness | Boy |
| Ola | Wealthy, Fortunate | Boy |
| Oleg | Holy | Boy |
| Olga | Holy | Boy |
| Olin | Holly, Olive Tree | Boy |
| Oliverio | Olive Tree | Boy |
| Olivier | Olive Tree | Boy |
| Olly | Olive Tree | Boy |
| Omari | High Born, Elevated | Boy |
| Onan | Strong | Boy |
| Oneal | Descendant Of Niall | Boy |
| Onslow | From The Zealous One’s Hill | Boy |
| Onyx | Black Gemstone | Boy |
| Ora | Gold | Boy |
| Oran | White, Pale | Boy |
| Orben | River Crossing | Boy |
| Orbie | Light | Boy |
| Ordell | Spearman’s Hill | Boy |
| Orel | Golden | Boy |
| Oren | Pine Tree | Boy |
| Orestes | Mountain Dweller | Boy |
| Orin | Pale, Fair | Boy |
| Orion | Son Of Fire | Boy |
| Oris | Tree | Boy |
| Orland | Famous Throughout The Land | Boy |
| Orlando | Famous Throughout The Land | Boy |
| Orlo | Golden | Boy |
| Ormand | Serpent | Boy |
| Ormond | Mountaineer | Boy |
| Orrick | Ancient Oak Tree | Boy |
| Orson | Bear Cub | Boy |
| Orval | Golden City | Boy |
| Orville | Golden City | Boy |
| Osbert | Divine Brightness | Boy |
| Osborn | Divine Bear | Boy |
| Oscar | Divine Spear | Boy |
| Osmond | Divine Protector | Boy |
| Oswald | Divine Ruler | Boy |
| Otis | Wealthy, Fortunate. | Boy |
| Oakley | From The Oak Tree Meadow | Girl |
| Ocean | The Sea | Girl |
| Oceana | Of The Sea | Girl |
| Octavia | Eighth | Girl |
| Odessa | Long Journey | Girl |
| Ola | Ancestor’s Relic | Girl |
| Olga | Holy | Girl |
| Olive | Olive Tree | Girl |
| Olivia | Olive Tree | Girl |
| Ollie | Olive Tree | Girl |
| Olympia | Home Of The Gods | Girl |
| Omega | Last Letter Of The Greek Alphabet | Girl |
| Ona | Grace | Girl |
| Onyx | A Type Of Gemstone | Girl |
| Opal | A Type Of Gemstone | Girl |
| Opaline | Resembling Opal | Girl |
| Ophelia | Helper | Girl |
| Ora | Light | Girl |
| Oralie | Golden | Girl |
| Orchid | A Type Of Flower | Girl |
| Orelia | Golden | Girl |
| Oriana | Golden | Girl |
| Orla | Golden Princess | Girl |
| Orlagh | Golden Princess | Girl |
| Orli | “My Light” In Hebrew | Girl |
| Orly | “My Light” In Hebrew | Girl |
| Orna | Pine Tree | Girl |
| Orpah | Fawn | Girl |
| Orra | Light | Girl |
| Orsa | Little She | Girl |
| Ortega | A Type Of Hawk | Girl |
| Ortensia | A Type Of Flower | Girl |
| Osanna | Praise | Girl |
| Osha | Dew | Girl |
| Osmunda | Divine Protection | Girl |
| Othelia | Wealthy | Girl |
| Ottilie | Wealthy | Girl |
| Ottoline | Wealthy | Girl |
| Ouida | Famous Warrior | Girl |
| Ovelia | Olive Tree | Girl |
| Ovidia | Sheep | Girl |
| Owen | Youthful Warrior | Girl |
| Oyin | Honey | Girl |
| Ozara | Treasure | Girl |
| Ozella | God’s Power | Girl |
| Ozie | God’s Power | Girl |
| Ozzie | God’s Power | Girl |
| Oakleigh | From The Oak Tree Meadow | Girl |
| Oceanea | Of The Sea | Girl |
| Oceanne | The Sea | Girl |
| Odelia | Praise God | Girl |
| Odile | Wealthy | Girl |
| Oksana | Praise Be To God | Girl |
| Olena | Torch Of Light | Girl |
| Olina | Joyful | Girl |
| Olinda | Pretty | Girl |
| Olwyn | White Footprint | Girl |
| Olympia | Heavenly Home | Girl |
| Onalee | “Graceful Light” | Girl |
| Onora | Honor | Girl |
| Oona | Lamb | Girl |
| Opalina | Resembling Opal | Girl |
| Opalyn | Resembling Opal | Girl |
| Orabella | Beautiful Seacoast | Girl |
| Oralia | Golden | Girl |
| Orea | Beautiful | Girl |
| Oren | Pine Tree | Girl |
| Oria | Golden | Girl |
| Oriole | A Type Of Bird | Girl |
| Orissa | Pine Tree | Girl |
| Orithyia | Mountain Nymph | Girl |
| Orliyah | “My Light Is Yahweh” | Girl |
| Orlynn | “My Light” | Girl |
| Ornaith | “Newborn Lamb” | Girl |
| Orphea | Fawn | Girl |
| Orrie | Elf Power | Girl |
| Orya | Light | Girl |
| Osiris | God Of The Dead And Underworld | Girl |
| Osma | Protecting | Girl |
| Osyth | Divine Treasure | Girl |
| Omaima | Little Mother | Girl |
| Omaira | Red Or Rosy Cheeked | Girl |
| Omaya | Leader | Girl |
| Omaria | Long | Girl |
| Omnia | Wish Or Desire | Girl |
| Oraib | The Light Of The Dawn | Girl |
| Orkida | Orchid Flower | Girl |
| Orkide | Orchid Flower | Girl |
| Orly | Light, My Light | Girl |
| Oumaima | Little Mother | Girl |
| Oumayma | Little Mother | Girl |
| Oumnia | Wish Or Desire | Girl |
| Oya | Air, Wind | Girl |
| Oyku | Story Or Tale | Girl |
| Oyshee | Delicious | Girl |
| Ozge | Different Or Unique | Girl |
| Ozra | Pure, Clear | Girl |
| Ozzie | Mighty Or Powerful | Girl |
| Obaida | Female Servant | Girl |
| Ofa | Love | Girl |
| Ola | Glory Or Honor | Girl |
| Olfa | Advantage Or Benefit | Girl |
| Olina | Joyous | Girl |
| Olima | Wise | Girl |
| Oliya | Exalted Or High | Girl |
| Olma | Possession Or Treasure | Girl |
| Oluwakemi | God Has Favored Me | Girl |
| Oma | Life Giver Or Giver Of Prosperity | Girl |
| Omah | Leader Or Ruler | Girl |
| Omama | Caring Mother | Girl |
| Omara | Eloquent Or Well Spoken | Girl |
| Omaya | Leader Or Head Of The Family | Girl |
| Omeka | Elevated Or High | Girl |
| Omina | Wish Or Desire | Girl |
| Omnia | My Wish Or Desire | Girl |
| Omola | Riches Or Prosperity | Girl |
| Onaiza | Intelligent Or Wise | Girl |
| Ons | Affection Or Love | Girl |
| Onsa | Remember Or Recall | Girl |
| Onsi | Emotional Or Sensitive | Girl |
| Ora | Prayer Or Light | Girl |
| Orina | Sunrise Or Dawn | Girl |
| Orla | Golden Princess | Girl |
| Ornah | Light Or Brightness | Girl |
| Oruj | Brilliant Or Shining | Girl |
| Osaira | Light Or Radiance | Girl |
| Osamah | Lion Or King | Girl |
| Osaydah | Lioness | Girl |
| Oshin | Ocean Or Sea | Girl |
| Osma | Protector Or Defender | Girl |
| Ossama | Lion Or King | Girl |
| Oumaimah | Little Mother | Girl |
| Ounsi | Emotional Or Sensitive | Girl |
| Oviya | Artist Or Painter | Girl |
| Owa | Gift Or Present | Girl |
| Owaisa | Little Or Small | Girl |
| Owda | Promise Or Covenant | Girl |
| Owena | Feminine Form Of Owen | Girl |
| Owliya | Friends Or Allies | Girl |
| Ozara | Pure Or Clear | Girl |
| Ozayr | Patient Or Steadfast | Girl |
| Ozraa | Pure Or Clear | Girl |
| Ozrah | Pure Or Clear | Girl |
| Obaida | Female Servant | Girl |
| Ohood | Promise Or Covenant | Girl |
| Olwiya | High Or Exalted | Girl |
| Onjali | Flower Or Blossom | Girl |
| Oraiba | The Light Of The Dawn | Girl |
| Orzala | Brightness Or Light | Girl |
| Oshra | Happiness Or Joy | Girl |
| Othman | A Companion Of Prophet Muhammad | Girl |
| Ouafa | Loyal Or Faithful | Girl |
| Oumou | Mother Or Lady | Girl |
| Oureya | Bright Or Radiant | Girl |
| Owadah | Gift Or Present | Girl |
| Owla | Helper Or Assistant | Girl |
| Owlema | Wise Or Learned | Girl |
| Owolewa | A Wealthy Person | Girl |
| Owliya | Friend Or Ally | Girl |
| Obaidullah | Servant Of Allah | Boy |
| Obayd | Worshiper | Boy |
| Oktay | Brave | Boy |
| Omar | Long | Boy |
| Omran | Solid Structure, Civilization | Boy |
| Omer | Life, Long | Boy |
| Omran | Solid, Structure | Boy |
| Onur | Brightness, Radiance | Boy |
| Orhan | Great Leader, Emperor | Boy |
| Osama | Lion | Boy |
| Osman | Servant Of God | Boy |
| Owais | Little Wolf | Boy |
| Owaiz | Replacement | Boy |
| Ozan | Bard, Poet | Boy |
| Ozgur | Free, Independent | Boy |
| Ozi | Beloved, Darling | Boy |
| Ozzie | Powerful, Mighty | Boy |
| Obaida | Small Slave | Boy |
| Obayda | Servant | Boy |
| Oday | Calm, Peaceful | Boy |
| Ola | Wealth, Fortune | Boy |
| Olabode | Wealth Returns | Boy |
| Olayinka | Honored In Wealth | Boy |
| Olumide | God Has Arrived | Boy |
| Omarion | King, Leader | Boy |
| Omeed | Hope | Boy |
| Omero | Prospering | Boy |
| Omri | My Sheaf | Boy |
| Onurcan | Honorable Soul | Boy |
| Or | Light | Boy |
| Oran | Green, Fertile | Boy |
| Oray | Prayer, Supplication | Boy |
| Orhanen | Highborn, Noble | Boy |
| Ori | Light | Boy |
| Oriel | Angel Of Destiny | Boy |
| Orin | Fair, Pale | Boy |
| Orion | Son Of Fire | Boy |
| Orville | Golden City | Boy |
| Osaid | Lion | Boy |
| Osamah | Lion, Tiger | Boy |
| Osamu | Discipline, Study | Boy |
| Osayd | Lion | Boy |
| Osaze | Whom God Helps | Boy |
| Osbourne | God’s Spear | Boy |
| Osgood | Divine, Good | Boy |
| Osiris | Powerful God | Boy |
| Oskar | Spear Of God | Boy |
| Osmanli | Ottoman | Boy |
| Ossama | One Who Is Lion | Boy |
| Ossian | Little Deer | Boy |
| Osvald | Divine Ruler | Boy |
| Oswaldo | God’s Power | Boy |
| Othman | Baby Snake | Boy |
| Othniel | Lion Of God | Boy |
| Ousama | One Who Is Lion | Boy |
| Oussama | One Who Is Lion | Boy |
| Owaisuddin | Little Wolf Of The Faith | Boy |
| Owanto | One Who Leads | Boy |
| Owyn | Young Warrior | Boy |
| Oya | Wind | Boy |
| Ozair | God’s Helper | Boy |
| Ozan | Poet | Boy |
| Ozay | Strong, Solid | Boy |
| Ozias | God’s Strength | Boy |
| Ozkan | Leader Of The Clan | Boy |
| Ozman | Divine Protector | Boy |
| Ozren | Heavenly | Boy |
| Ozvald | Divine Ruler | Boy |
| Ozzie | Powerful, Mighty | Boy |
| Ozzman | Divine Protector | Boy |
| Othmane | Baby Snake | Boy |
| Oueslati | Powerful, Strong | Boy |
| Ousmane | Servant Of God | Boy |
| Ousseynou | Little Husayn | Boy |
| Owais Khan | Little Wolf Leader | Boy |
| Owais Malik | Little Wolf King | Boy |
| Owais Qarni | Little Wolf Of Qarn | Boy |
| Owais Raza | Little Wolf Of The Faith | Boy |
| Owais Shaikh | Little Wolf Of The | Boy |
| Orlando | Renowned Throughout The Land | Boy |
| Ottavio | Eighth | Boy |
| Osvaldo | Divine Ruler | Boy |
| Olimpia | From Mount Olympus | Girl |
| Oreste | Mountain Dweller | Girl |
| Orlina | Gold | Boy |
| Ottavia | Eighth | Girl |
| Orsino | Bear | Boy |
| Orazio | Timekeeper | Boy |
| Ottone | Prosperous Defender | Boy |
| Osman | Servant Of God | Boy |
| Oya | Wind | Girl |
| Oktay | Brave | Boy |
| Ozan | Bard, Poet | Boy |
| Ozge | Mature | Girl |
| Ozlem | Longing, Yearning | Girl |
| Ozgur | Free, Independent | Unisex |
| Onur | Brightness, Radiance | Unisex |
| Omer | Life, Long | Boy |
| Oya | Embroidery | Girl |
| Om | Sacred Syllable, Universe | Boy |
| Omkar | Lord Shiva | Boy |
| Ojas | Vitality, Strength | Boy |
| Oviya | Artist, Beautiful Drawing | Girl |
| Omisha | Goddess Of Birth And Death | Girl |
| Oindrila | Wife Of Lord Indra | Girl |
| Ojal | Vision, Splendor | Girl |
| Omprakash | Light Of God | Boy |
| Oorvi | Earth | Girl |
| Ovi | Poetry | Girl |
| Olivia | Olive Tree | Girl |
| Oscar | God’s Spear | Boy |
| Owen | Young Warrior | Boy |
| Orlando | Renowned Throughout The Land | Boy |
| Octavia | Eighth | Girl |
| Oakley | From The Oak Tree Field | Unisex |
| Odette | Wealthy | Girl |
| Ophelia | Help | Girl |
| Odessa | Long Journey | Girl |
| Odell | Wealthy | Unisex |
| Olga | Holy | Girl |
| Oleg | Holy | Boy |
| Oksana | Praise Be To God | Girl |
| Olav | Ancestor’s Descendant | Boy |
| Orest | Mountain Dweller | Boy |
| Olena | Bright, Shining | Girl |
| Olesya | Defender | Girl |
| Oksanka | Praise Be To God | Girl |
| Olver | Elf Army | Boy |
| Orian | Golden | Girl |
| Ofir | Gold | Unisex |
| Or | Light | Unisex |
| Ofer | Fawn | Boy |
| Ovadia | Servant Of God | Boy |
| Osnat | Divine Gift | Girl |
| Oz | Strength | Boy |
| Omer | Life, Long | Boy |
| Orli | Light Of God | Girl |
Baby Girl Names That Start With O
| Olivia | Oakley | Oaklynn |
|---|---|---|
| Olive | Octavia | Ophelia |
| Onyx | Ocean | Oaklee |
| Oaklyn | Oakleigh | Opal |
| Ollie | Ozias | Odette |
| Odessa | Oriana | Ofelia |
| Oona | October | Olympia |
| Orilla | Octavie | Omega |
| Ondina | Ophilia | Orla |
| Oleen | Ocia | Onida |
| Olida | Olva | Orphie |
| Olga | Orella | Ordell |
| Oline | Oriole | Orra |
| Orphia | Orina | Orsola |
| Olla | Orianna | Ohana |
| Olene | Orinda | Odelle |
| Oney | Oceana | Oreta |
| Orpah | Onita | Ora |
| Odelia | Oretta | Olsen |
| Oletta | Ottilie | Oaks |
| Oda | Olivera | Orly |
| Olena | Olina | Ona |
| Orna | Otila | Oriel |
| Orlena | Oksana | Orange |
| Orlene | Omyra | Otelia |
| Orenthia | Ortensia | Ondrea |
| Odell | Oceane | Olutosin |
| Ofilia | Oleda | Oralee |
| Orli | Oliva | Oletha |
| Odila | Oretha | Orielle |
| Ourania | Orenda | Olivya |
| Orlee | Oprah | Ouida |
| Onie | Orlanda | Ondria |
| Oksanna | Ophelie | Olia |
| Olisa | Onella | Orpha |
| Orquidea | Otylia | Olinda |
| Olwyn | Onawa | Olenna |
| Olivija | Oreana | Olabisi |
| Olethea | Olufunmilayo | Obdulia |
| Oliana | Olexa | Octivia |
| Orianne | Osanna | Orit |
| Octaviana | Oma | Oleander |
| Otilia | Oakly | Olivine |
| Olivette | Ola | Oli |
| Olesia | Ohanna | Ocie |
| Ohtli | Orabella | Odella |
| Orah | Olianna | Ozara |
| Ondine | Odilia | Orel |
| Osei | Orlaith | Ozma |
| Ottilia | Orelia | Oni |
| Oriane | Ophira | Oleta |
| Ottavia | Oneida | Orya |
| Ozell | Olimpia | Ozella |
| Ornella | Orabelle | Oonagh |
| Olevia | Oceania | Odile |
| Orien | Oba | Oluremi |
| Odera | Ovelia | Ororo |
| Omolara | Orlagh | Oria |
| Oralia | Opaline | Onora |
| Olivet | Olivea | Odetta |
| Olwen | Odina | Onorine |
| Oralis | Ocarina | Octavianne |
| Octiana | Octoviana | Odeelia |
| Odela | Odele | Odelet |
| Odelette | Odelina | Odelinda |
| Odeline | Odellia | Odissa |
| Odolia | Odyssa | Ofrat |
| Odyssia | Ofeera | Ofelja |
| Ofira | Ofrit | Ogenya |
| Oheo | Ohndrea | Ohndreea |
| Ohndria | Ojasvee | Ojinjintka |
| Oktawja | Olaniyi | Olathe |
| Oleana | Oleesa | Oleisa |
| Olenka | Olenya | Olesja |
| Olette | Oliff | Oliffe |
| Olimpe | Olimpiada | Olimpiana |
| Olinia | Olinija | Oliveea |
| Oliveria | Olivetta | Oliwja |
| Oluluaboe | Oluwafunmike | Olwenn |
| Olwin | Olwynne | Olympe |
| Olympie | Olynda | Olypme |
| Omana | Ombretta | Omeira |
| Ondreea | Ondyne | Oneonta |
| Onjella | Onndrea | Onndreea |
| Onndria | Onnora | Onorata |
| Onoria | Onyda | Ooma |
| Oonah | Opa | Opale |
| Opalina | Opall | Ophelya |
| Orabel | Oracia | Orali |
| Oralie | Oralit | Orane |
| Orangetta | Orangia | Orangina |
| Orania | Orarariana | Orareeana |
| Orasia | Oratia | Orazia |
| Orbel | Orbella | Orbelle |
| Orela | Orelda | Orelie |
| Oreolle | Orestilla | Orette |
| Orfea | Orfeya | Orfia |
| Orielda | Oriella | Orinthia |
| Oriola | Oriolle | Ornett |
| Ornetta | Ornina | Ornora |
| Orpa | Orphea | Orpheya |
| Orrinthia | Orrla | Orrnett |
| Orsa | Orsala | Orsalina |
| Orsaline | Orsel | Orselina |
| Orseline | Orsolla | Orsolya |
| Orssa | Orszebet | Ortensa |
| Ortensija | Ortensya | Orthia |
| Oryna | Osaka | Osana |
| Osma | Ostia | Osvalda |
| Osyka | Otameesia | Otamisia |
| Ottalia | Ottamisia | Otthild |
| Otthilda | Ottila | Ottiline |
| Ottolie | Ottoline | Ottorina |
| Otzara | Otzarah | Oula |
| Ouranie | Ouray | Ovalia |
| Ozana | Ofra | Onnjel |
| Ophra | Ophrah | Ormonde |
| Ornette | Olympas | Odeletta |
| Omera | Oskie | Okkoto |
| Osono | Ojasvini | Orvakki |
| Ozigbodi | Orana | Oola |
| Oleksandra | Onox | Olioli |
| Onosa’i | Olaga | Omecihuatl |
| Omnira | Odean | Ovidia |
| Oana | Odeta |
List of Baby Boy Names That Start With O
Here is a list of Names That Start With O:
| Omari | Omar | Osiris |
|---|---|---|
| Oliver | Owen | Oakley |
| Oscar | Omar | Onyx |
| Otto | Orion | Odin |
| Oaklee | Oakleigh | Opal |
| Omari | Ozzy | Otis |
| Ollie | Orlando | Osiris |
| Osman | Ozzie | Ozias |
| Oren | Octavio | Oskar |
| Orson | Obadiah | Osvaldo |
| Olin | Orin | O’Shea |
| Octavius | Obed | Othmar |
| Omer | Olindo | Osmar |
| Olivier | Onslow | Omega |
| Octavian | Orrin | Olof |
| Orwin | Oswell | Osburn |
| Oak | Oswald | Ota |
| Ordell | Otello | Oshea |
| Osgood | Olivio | Oriole |
| Orrel | Othman | Olavi |
| Oswaldo | Oney | Orvell |
| Oron | Odysseus | Orton |
| Obi | Oz | Olsen |
| Ormand | Oaks | Osmund |
| Oswin | Othniel | Olen |
| Obama | Ostin | Obert |
| Olliver | Oisin | Ortiz |
| Onofrio | Octave | Omri |
| Oriel | Ondray | Orman |
| Octavious | Oakes | Orpheus |
| Obie | Oberon | O’Shay |
| O’Brien | Ona’je | Odell |
| Okechukwu | Olutosin | Olle |
| Orlin | Oreste | Okpara |
| Odilon | Ondrej | Orval |
| Olatunde | Osmond | Olatokunbo |
| Omarr | Osborne | Ondria |
| Ormond | Oral | Orlondo |
| Oran | Olisa | Osbert |
| Oved | Owynn | Octavus |
| Ovid | Ofir | Ossie |
| Olukayode | Ophir | Onofre |
| Obasi | Orvil | Otho |
| Omid | Olushola | Ozie |
| Onorio | Orran | Olexa |
| Overton | Oluyemi | Ohad |
| Orenthal | Othello | Osmin |
| Obafemi | Olusegun | Ondra |
| Odon | Osker | Ottis |
| Oleander | Ovie | Orville |
| Oakly | Oxford | Oleg |
| Ola | Owens | Ossian |
| Oli | Odis | Ole |
| Ohtli | Owin | Osama |
| Orren | Omero | Ogden |
| Orel | Osten | Oneal |
| Octaviano | Osei | Osbourne |
| Ondre | Obediah | Osvin |
| Osher | Osborn | Onni |
| Odhran | Otha | Ozell |
| Osric | Orsen | Olan |
| Omario | Oluwatobi | Olujimi |
| Oliverio | Oleksandr | Olaf |
| Odie | Owain | Ostyn |
| Orazio | Ohene | Orvin |
| Orry | Orland | Orien |
| Olumide | Olek | Oba |
| Ottavio | Otniel | Oswyn |
| Oryon | Or | Onesimo |
| Olyn | Olufemi | Oles |
| Oleksiy | Olav | Orestes |
| Odera | Oshin | Osha |
| Omotunde | O’Keefe | Okeke |
| Okeli | Okonkwo | Odion |
| Oates | Obadias | Obadya |
| Oberron | Obike | Ochs |
| Octavo | Octovien | Odall |
| Odd | Odilio | Odilo |
| Odo | Odolf | Odolff |
| Odovacar | Odran | Odulf |
| Odysse | Oeberon | Ofeer |
| Ofer | Ogaleesha | Ogbonna |
| Ogdan | Ogdon | Ogun |
| Ogunkeye | Ogsanwo | Ohanzee |
| Ohed | Ohndrae | Ohndre |
| Ohngel | Ohnjel | Ohnrey |
| Okafo | Oktawjan | Olaff |
| Olakeakua | Olaniyonu | Olave |
| Oleksei | Oleksey | Oleksi |
| Olexei | Olexey | Olexi |
| Olexiy | Olimpio | Olimpo |
| Olivero | Oliviero | Olivor |
| Oliwjer | Olley | Ollivor |
| Olorun | Olov | Olumiji |
| Olushegun | Olympio | Olympios |
| Olympus | Omanand | Ondrae |
| Ondrei | Ondrey | Onesiphorus |
| Onfre | Onfroi | Onjel |
| Onjello | Onnjelo | Onofredo |
| Onofrius | Onophrio | Onorato |
| Onslowe | Onwoachi | Oratio |
| Ossin | Orfeo | Orford |
| Ormondo | Ornet | Oro |
| Orric | Orrick | Orsin |
| Orsini | Orsino | Orsis |
| Orsonio | Ortensio | Orv |
| Orvelle | Orwynn | Osage |
| Osbourn | Osburne | Osier |
| Osip | Osment | Osmonde |
| Osmont | Osmunde | Osred |
| Osrick | Ossi | Ostynn |
| Osvald | Ottfried | Oswinn |
| Oswynn | Osyka | Oszkar |
| Ot | Otakar | Otess |
| Otildo | Otmar | Otokar |
| Ottaviano | Ottfrid | Ottild |
| Ottildo | Ottokar | Ottone |
| Ottorino | Otys | Ounslow |
| Ouray | Ousama | Ovadiach |
| Ovadiah | Owney | Owodunni |
| Oxxford | Onnjel | Ophra |
| Ophrah | Ormonde | Ornette |
| Olympas | Olar | Olavo |
| Omera | Okkoto | Oleh |
| Ors | Oko | Orkins |
| Oleksander | Orwell | Oceanus |
| Onox | Oshus | Odahviing |
| Olioli | Olaga | Onacona |
| Oukonunaka | Odean | Ovidiu |
Gender-Neutral Baby Names That Start With O
| Oriole | Oney | Olsen |
|---|---|---|
| Oakley | Onyx | Oaklee |
| Oakleigh | Opal | Ollie |
| Ozias | Omega | Ordell |
| Oaks | Oriel | Odell |
| Olutosin | Ondria | Olisa |
| Olexa | Oleander | Oakly |
| Ola | Oli | Ohtli |
| Orel | Osei | Ozell |
| Orien | Oba | Odera |
| Osyka | Ouray | Onnjel |
| Ophra | Ophrah | Ormonde |
| Ornette | Olympas | Omera |
| Okkoto | Onox | Olioli |
| Olaga | Odean |
Unique Names for Babies With ‘O’
- Octavia
- Orion
- Ophelia
- Otis
- Odalys
- Oisin
- Olwen
- Orenda
- Osiris
- Olena
- Orlaith
- Ottilie
- Ozara
- Oaklynn
- Odessa
- Oisin
- Onyx
- Orlan
- Oona
- Ozymandias
Frequently Asked Questions
Q: What are some popular baby names starting with O?
Ans: Olivia, Oliver, Owen, Oakley, and Ophelia are trendy baby names beginning with O.
Q: What are unique baby names that start with O?
Ans: Orlaith, Ottilie, and Ozara for distinctive and unique baby names starting with the letter ‘O’.
Q: What are gender-neutral names that start with O?
Ans: Oakley, Ocean, and Ollie work well as gender-neutral baby names that begin with O.
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