Baby Names That Start With O
699 baby names beginning with the letter O — boys and girls, each with meaning and audio pronunciation.
The most-loved baby names starting with O, most-popular first. Tap any name to hear it pronounced and read its meaning.
Girl Names
Olivia#1 in the U.S.Olive tree; a symbol of peace▶Oaklynn#153 in the U.S.Modern coinage blending Old English āc (oak tree) with the popular feminine suffix -lynn (from ▶Oakley#156 in the U.S.Oak clearing or oak meadow; from Old English ac (oak) + leah (clearing, meadow)▶Olive#197 in the U.S.Olive tree — from Latin oliva (olive tree, olive fruit), the ancient symbol of peace, wisdom, a▶Ophelia#264 in the U.S.Help, aid; one who offers assistance▶Octavia#308 in the U.S.Eighth; born as the eighth child▶Opal#423 in the U.S.From Sanskrit upala meaning precious stone or gem, via Latin opalus; the opal gemstone is known▶Oaklee#535 in the U.S.Feminine respelling of Oakley, from Old English ac ('oak') and leah ('clearing, meadow'), meani▶Oaklyn#637 in the U.S.A modern coined name combining the Old English ac ('oak tree') with the suffix -lyn (from Old E▶Oakleigh#668 in the U.S.Variant spelling of Oakley, from Old English ac meaning oak tree and leah meaning wood, clearin▶Ocean#787 in the U.S.The great sea or vast expanse of water; from the Latin oceanus and Greek okeanos, the mythologi▶Odette#883 in the U.S.French feminine diminutive of Oda or Ode, from Old High German Aud or Od meaning wealth, fortun▶Onyx#1248 in the U.S.Black gemstone; from Greek onyx (fingernail, claw — the stone's layers resemble a fingernail)▶Odessa#1583 in the U.S.Taken from the Black Sea city of Odessa, named after the ancient Greek colony Odessos and assoc▶Oriana#1842 in the U.S.Gold▶Ofelia#1902 in the U.S.Help, advantage▶Ollie#2256 in the U.S.olive tree, symbol of peace▶Ottilie#2315 in the U.S.wealth, fortune, prosperity▶Olympia#2473 in the U.S.of Olympus, heavenly▶Oona#2474 in the U.S.lamb▶Orla#2517 in the U.S.golden princess▶Ozzy#2807 in the U.S.God▶Ozzie#2838 in the U.S.Origin uncertain▶Oaklie#2908 in the U.S.Oak clearing▶Ozelle#2929 in the U.S.Ozelle is best read as a variant of Ozella, an American, largely Southern coinage whose ultimat▶Odelia#2952 in the U.S.Origin uncertain▶Okie#3091 in the U.S.Okie, as an early-century girl's given name, is best read as a fond, homey coinage or pet name ▶Olga#3309 in the U.S.Holy, blessed; Russian form of Scandinavian Helga, from Old Norse heilagr, 'holy'▶Ohana#3473 in the U.S.Family, kin group; the Hawaiian word for extended family, popularized as a name by Lilo & Stitc▶Ora#3474 in the U.S.Light; from Hebrew orah, a modern Israeli name▶Ondina#3564 in the U.S.Ondina comes from the Latin unda, 'wave,' and names the undine, a water spirit or nymph of Euro▶Oakland#3618 in the U.S.Land of the oaks; an English-derived place name, and the California city, used as a girls' name▶October#3619 in the U.S.The tenth month; from Latin octo, 'eight', as the eighth month of the old Roman calendar▶Odalys#3620 in the U.S.From Germanic odal, 'wealth, heritage, homeland'; a Spanish feminine name (related to Odalric/O▶Orilla#3703 in the U.S.Orilla is an early twentieth-century American name of uncertain build. It may be a trimmed form▶Ori#3856 in the U.S.From Hebrew ori, 'my light' — a modern Israeli name for both sexes, here for girls▶Olyvia#4086 in the U.S.Y-spelling of Olivia — from Latin oliva, 'olive', symbol of peace▶Olivene#4102 in the U.S.Olivene extends Olive with the soft -ene ending. Olive comes from the Latin oliva, 'olive, oliv▶Ophilia#4178 in the U.S.A variant spelling of Ophelia, from the Greek ophelia, 'help; aid; benefit.' Ophelia is also Ha▶Orma#4224 in the U.S.Orma is a vintage American girls' name whose origin is uncertain. It is most plausibly a short ▶Olena#4257 in the U.S.Ukrainian form of Helen — Greek, 'light, torch; bright'▶Octa#4304 in the U.S.Octa reads as a clipped form of Octavia or Octavie, names built on the Latin octavus, 'eighth.'▶Oumou#4343 in the U.S.From Arabic umm, 'mother' (as in Oumou Kalthoum) — a common West African (Fula/Mandinka) name▶Olar#4425 in the U.S.Olar is a rare early-century Southern name of uncertain origin. It may elaborate Ola - a short ▶Orion#4432 in the U.S.From Greek Orion — the mythical hunter placed among the stars; etymology uncertain (possibly 'r▶Orianna#4618 in the U.S.Double-n elaboration of Oriana — possibly from Latin aurum, 'gold' (golden), or oriri, 'to rise▶Odeal#4705 in the U.S.Odeal reads as a spelling of Odell, an English place and surname meaning woad hill, from a plan▶Oaklynne#4731 in the U.S.Modern coinage joining Oak (the oak tree, a symbol of strength) to the -lynne ending; no single▶Ona#4732 in the U.S.Lithuanian/Catalan form of Anna — from Hebrew Channah, 'grace'; also linked to 'a river'; route▶Olene#4779 in the U.S.Olene is most likely an -ene elaboration of Ola or Olena, feminine names tied to the Old Norse ▶Olla#4808 in the U.S.Olla is a short vintage name, most plausibly a clip of Olive or Olivia, or a Scandinavian femin▶Orella#4830 in the U.S.Orella is best read as an early-twentieth-century variant of Orelia or Aurelia, from the Latin ▶Orli#4844 in the U.S.From Hebrew or, 'light', plus li, 'mine/to me' — 'light is mine; my light'▶Oline#5069 in the U.S.Oline is chiefly the Norwegian feminine of Ole (from Olaf, 'ancestor's descendant', Old Norse A▶Ople#5073 in the U.S.Ople's origin is genuinely unclear. It may be a phonetic or dialectal variant of the gem name O▶Okla#5074 in the U.S.Okla is an early-1900s American name best explained as a short, place-inspired coinage echoing ▶Oree#5074 in the U.S.Oree is an early-1900s American girl's name whose origin is not firmly documented. It reads mos▶Oceana#5094 in the U.S.Feminine of Oceanus — from Greek Okeanos, 'the ocean; the great sea that encircles the earth'▶Olivianna#5095 in the U.S.Modern blend of Olivia ('olive tree', a symbol of peace) and Anna ('grace'); no single fixed ro▶Orine#5102 in the U.S.Orine is an uncommon early-twentieth-century name, most plausibly a variant of Orina or a femin▶Onita#5164 in the U.S.Onita reads as a diminutive in the -ita family, most likely a clipped, respelled form of Juanit▶Opha#5187 in the U.S.Opha is a rare early-American given name whose origin is not settled. It may draw on a biblical▶Ortha#5191 in the U.S.Ortha has no single settled source; it most plausibly reworks Orpha, the biblical Moabite name,▶Oliver#5241 in the U.S.From Oliver — Latin oliva, 'olive tree' (a symbol of peace), or Old Norse Aleifr, 'ancestor's d▶Ophia#5253 in the U.S.Ophia is best read as a short form drawn from the tail of names like Sophia or Theophania, both▶Obera#5258 in the U.S.Obera is a rare early twentieth-century name of uncertain origin. It may be an elaboration of O▶Odyssey#5385 in the U.S.From the word odyssey — from Homer's Odyssey (the epic journey of Odysseus) — 'a long, adventur▶Othelia#5392 in the U.S.Othelia is a variant of Othilia or Odelia, from the Germanic element odal or aud, meaning wealt▶
Boy Names
Oliver#3 in the U.S.Olive tree; associated with peace and fruitfulness▶Owen#31 in the U.S.Young warrior; well-born; the Welsh form of Eugene▶Oscar#223 in the U.S.God's spear; from Old Irish os (god) + cara (friend), or Old English os (god) + gar (spear)▶Omar#260 in the U.S.Flourishing, long-lived; eloquent▶Otto#277 in the U.S.Wealth, fortune; prosperous and powerful▶Orion#334 in the U.S.From the Greek Orion, a giant hunter of Greek mythology. The etymology may derive from the Gree▶Onyx#365 in the U.S.From the Greek 'onyx', meaning claw or fingernail (because the stone's colors resemble a finger▶Oakley#454 in the U.S.English surname from Old English 'ac' (oak) and 'leah' (woodland clearing, meadow), meaning 'oa▶Odin#502 in the U.S.From Old Norse Óðinn, derived from óðr meaning 'fury,' 'inspiration,' or 'ecstasy,' the name of▶Ozzy#549 in the U.S.Pet form of Oswald or Oscar (and sometimes Ozymandias); Oswald derives from Old English os ('go▶Otis#652 in the U.S.English surname from the Germanic given name Odo or Otto, from aud meaning wealth or prosperity▶Omari#687 in the U.S.From Swahili omari, from Arabic Umar or Omar meaning flourishing, long-lived, or prosperous; us▶Ozias#708 in the U.S.Greek form of the Hebrew name Uzziah (עֻזִּיָּה), meaning 'my strength is Yahweh' or 'God has h▶Ocean#720 in the U.S.From the Latin oceanus, from Greek okeanos (Ὠκεανός), the name of the Titan god who personified▶Orlando#873 in the U.S.Italian form of Roland, from Old High German Hruodland, composed of hruod (fame, glory) and lan▶Osiris#976 in the U.S.Powerful; possibly 'place of the eye' or 'throne-eye'; from Egyptian Wsir (Osiris), the god of ▶Oziel#997 in the U.S.From Hebrew Uzziel or Oziel meaning my strength is God, composed of oz meaning strength or powe▶Osman#1031 in the U.S.Protector; bone-setter; Turkish/Arabic form of Uthman, from Arabic uthmana (a young lion cub) o▶Ollie#1044 in the U.S.Olive tree; symbol of peace; English pet form of Oliver or Olivia, from Latin olivarius (olive ▶Osiel#1220 in the U.S.Strength of God, God's power▶Oakland#1296 in the U.S.Land of oak trees▶Osvaldo#1314 in the U.S.Divine power, God's ruler▶Octavio#1366 in the U.S.Eighth; the eighth son▶Oren#1380 in the U.S.Pine tree; also light or pale▶Obadiah#1412 in the U.S.Servant of God, worshipper of God▶Ozzie#1413 in the U.S.Divine power; bear-god power▶Orson#1500 in the U.S.From a Norman French nickname from Latin 'ursus' (bear), meaning 'bear cub'.▶Ori#1564 in the U.S.from Hebrew 'ori', combining 'or' ('light') with the possessive suffix, meaning 'my light'▶Oaklen#1699 in the U.S.A modern invented American name combining the nature word oak with the fashionable -len/-lyn su▶Oskar#1721 in the U.S.Form of Oscar, from Gaelic 'os' (deer) and 'cara' (friend), 'deer friend'.▶Oslo#1922 in the U.S.Meadow of the gods (or meadow beneath the ridge); from the Norwegian capital▶Oziah#1923 in the U.S.Yahweh is my strength (variant of Uzziah)▶Oaklee#1944 in the U.S.Oak clearing▶Obed#1945 in the U.S.Serving, worshipping▶Octavius#2020 in the U.S.Eighth▶Omer#2105 in the U.S.Sheaf or measure of grain; associated with the Hebrew omer offering and harvest.▶Oswald#2121 in the U.S.God▶Olin#2143 in the U.S.Ancestor's descendant▶Om#2161 in the U.S.The sacred syllable Aum, primordial sound of the universe and supreme mantra in Hinduism.▶Oden#2221 in the U.S.Frenzied, furious, inspired▶Orhan#2222 in the U.S.Place▶Olsen#2245 in the U.S.son of Ole, son of the ancestor▶Orin#2246 in the U.S.light, pine tree▶Octavian#2270 in the U.S.eighth, born eighth▶Osmar#2354 in the U.S.Divine glory; god-famous; from Germanic Osmar (os: a god, divine + mari: famous, renowned)▶Oak#2429 in the U.S.The oak tree; from Old English ac (the oak, Quercus robur) — the most venerated tree in British▶Osiah#2582 in the U.S.Yahweh is salvation / supports▶Othmar#2590 in the U.S.Othmar is an old German and Bavarian name from Old High German ot/ot ('wealth, riches') and mar▶Omarion#2613 in the U.S.Modern name extending Omar with an -ion ending; no inherent traditional meaning beyond Omar 'fl▶Olivier#2690 in the U.S.Olive tree▶Orrin#2691 in the U.S.pine tree (Hebrew); pale (Irish)▶Oshea#2728 in the U.S.Salvation▶Oaks#2856 in the U.S.Origin uncertain▶Onis#2862 in the U.S.Onis is a rare early-century name of uncertain origin. The most plausible route is a short form▶Olen#2895 in the U.S.Origin uncertain▶Oswaldo#2930 in the U.S.God▶Oakes#3025 in the U.S.Dweller near the oak trees▶Ojas#3026 in the U.S.Vitality, vigor, the vital essence of the body▶Ousmane#3074 in the U.S.West African (Wolof, Mandinka, Fula) form of Uthman, from Arabic uthman meaning young bustard b▶Oz#3075 in the U.S.From Hebrew oz, meaning strength, might, or courage; used as an independent name and as a short▶Oaklan#3130 in the U.S.Variant of Oakland, from Old English ac ('oak') and land ('land'), meaning 'land of oak trees'▶Odysseus#3131 in the U.S.From ancient Greek, possibly related to odussomai ('to be wrathful against,' 'to hate') or odys▶Omri#3132 in the U.S.From Hebrew Omri (עָמְרִי), possibly meaning 'my sheaf' (from omer, a unit of grain) or 'servan▶Ovidio#3133 in the U.S.Italian and Spanish form of the Latin family name Ovidius, possibly derived from Latin ovis ('s▶Opie#3191 in the U.S.Short form or nickname derived from Old English name Osbert or Oswald, or used independently; a▶Oseias#3192 in the U.S.Portuguese form of Hosea, from Hebrew Hoshea meaning 'salvation' or 'God saves'▶Ordean#3216 in the U.S.Ordean reads as a Scandinavian-American coinage of the sort that clustered among Norwegian and ▶Omega#3249 in the U.S.The final letter of the Greek alphabet, literally 'great O'; symbolically, the end, the ultimat▶Olson#3307 in the U.S.Scandinavian patronymic surname, 'son of Ole' — Ole descending from Olaf, 'ancestor's descendan▶Oaklyn#3364 in the U.S.Modern American blend of Oak — the strength-symbol tree — with the -lyn ending; mostly used for▶Oley#3519 in the U.S.Oley is a variant of Ole, the Norwegian and Danish short form of Olaf, from the Old Norse 'Anle▶Owais#3566 in the U.S.From Arabic — a diminutive linked to 'wolf' (aws); borne by the revered early Muslim Owais al-Q▶Orvis#3578 in the U.S.Orvis is an English surname that was used as a boys' first name in the early twentieth century;▶Othel#3590 in the U.S.Othel is an early-twentieth-century American boy's name of uncertain origin. It most plausibly ▶Oval#3638 in the U.S.Oval is an uncertain early-century American boys' name, most plausibly a variant or clipping of▶Oumar#3657 in the U.S.West African (French-spelled) form of Umar/Omar — Arabic, 'flourishing, long-lived, populous'; ▶Oberon#3744 in the U.S.From Auberon/Alberich — Germanic 'elf ruler' (or 'noble bear' readings) — Shakespeare's fairy k▶Oriel#3745 in the U.S.From Latin aureus, 'golden' (the oriel window/Oxford college), blending with Hebrew Uriel, 'God▶Othniel#3746 in the U.S.From Hebrew Otniel — read 'lion of God' or 'God is my strength' — Israel's first judge▶Onie#3779 in the U.S.Onie is an affectionate -ie name of uncertain base; it likely shortens a longer name ending in ▶Othal#3788 in the U.S.Othal is a rare early-twentieth-century American name, most likely a form of Othel or Otho, fro▶Obi#3854 in the U.S.From Igbo obi, 'heart' — also a royal title (the Obi of Onitsha); galaxy-famous via Obi-Wan▶Oryan#3855 in the U.S.Y-styled Orion — the mythic hunter and his constellation; 'light of heaven' folk readings▶Okley#3860 in the U.S.Okley is a simplified spelling of Oakley, an English place and surname name meaning 'oak wood' ▶Oland#3861 in the U.S.Oland is best read as a clipped or variant form of Roland, from the Germanic hrod, 'fame,' plus▶Orvel#3871 in the U.S.Orvel is a plainer spelling of Orville, a name popularized as a first name from a French place-▶Ozia#3897 in the U.S.A modern name echoing the biblical Uzziah/Ozias, 'the Lord is my strength' (Hebrew); it also re▶Ovila#3922 in the U.S.Ovila is a given name used chiefly in French-Canadian (Quebecois) families and, in a related fo▶Ollivander#3946 in the U.S.From Harry Potter's wandmaker Ollivander — Rowling coinage, 'he who owns the olive wand' by her▶Oseas#3947 in the U.S.Spanish form of Hosea — Hebrew 'salvation' — the steadfast-love prophet▶Oswin#3948 in the U.S.Old English os, 'god', plus wine, 'friend' — the martyred gentle king of Deira▶Othman#4031 in the U.S.From Arabic Uthman, traditionally 'a young bustard (bird)'; the third caliph's name▶Orton#4107 in the U.S.Orton is an English surname taken from any of several places called Orton, whose name usually j▶Orvill#4108 in the U.S.Orvill is a trimmed spelling of Orville, a name usually explained as Old French 'or' (gold) plu▶Oisin#4145 in the U.S.From Irish Oisín — from os, 'deer' — 'little deer, fawn'; the great poet-warrior of legend▶Osias#4146 in the U.S.From Osias/Ozías — a form of Hosea ('salvation') or Uzziah ('Yahweh is my strength'); routes la▶Oiva#4212 in the U.S.Oiva is a Finnish given name from the Finnish word oiva, meaning 'splendid,' 'excellent,' or 'f▶Odes#4235 in the U.S.Odes is a rare, opaque boy's name from the early-twentieth-century American South. It has no cl▶Orlin#4277 in the U.S.From Bulgarian Orlin — from orel, 'eagle' — also echoing Latin 'golden' (Orlando lines); routes▶Owyn#4278 in the U.S.Y-spelling of Owen — Welsh, 'young warrior' or 'well-born, noble' (linked to Eugene)▶Orlen#4321 in the U.S.Orlen is most plausibly a trimmed form of Orlando - the Italian form of Roland, from the German▶Obert#4374 in the U.S.Obert is generally traced to the old Germanic name Osbert, from os, 'god', and beorht, 'bright'▶Ormand#4412 in the U.S.Ormand is a variant of Ormond, a surname and first name that comes from the Irish place-name fo▶Olney#4458 in the U.S.Olney is an English place-name and surname, traced to Old English elements meaning 'Olla's isla▶Orley#4463 in the U.S.Orley is best read as a surname-style name, most likely from an English place name ending in -l▶Ova#4463 in the U.S.Ova is a scarce early-twentieth-century American name whose origin is not well documented. It m▶Odies#4481 in the U.S.Odies is a rare early-American spelling connected to Odie and Otis, pet forms of names built on▶Orlie#4490 in the U.S.Orlie is an affectionate short form most likely built on Orlando, the Italian form of Roland me▶Obaida#4508 in the U.S.From Arabic Ubaida/Obaida, a diminutive of abd, 'servant' — 'little servant (of God)'; an honor▶Ostin#4509 in the U.S.Spelling of Austin — a medieval contraction of Augustine, from Latin augustus, 'great, magnific▶Odell#4651 in the U.S.From an English place-name/surname — Old English wad-hyll, 'woad hill' (where the dye-plant woa▶Olan#4652 in the U.S.From Irish Olan (an early saint) and/or the Norse Olin/Olaf, 'ancestor's descendant'; routes la▶Omoro#4720 in the U.S.Omoro is best known in the United States as the name of Omoro Kinte, the Mandinka father of Kun▶Onofrio#4722 in the U.S.Onofrio is the Italian form of Onuphrius, the name of a fourth-century desert hermit-saint of E▶Olvin#4818 in the U.S.Latino name echoing Alvin ('noble friend' or 'elf friend', Germanic); construction layered▶Omir#4819 in the U.S.From Arabic Omar/Umar, 'long-lived, prosperous; a builder/flourishing', and Amir, 'prince'; als▶Oran#4982 in the U.S.From Irish Odhran/Oran, 'pale green; a little pale/sallow one'; also Hebrew Oran, 'light' (from▶Orian#4983 in the U.S.Spelling of Orion — the hunter constellation (Greek myth); also a Hebrew name linked to or, 'li▶Ozan#4984 in the U.S.From Turkish ozan, 'a bard, a folk poet; a minstrel who recites epic verse'▶Oaken#5174 in the U.S.From the word oaken — Old English acen, 'made of oak; of the oak tree' (a symbol of strength)▶Oaklin#5175 in the U.S.Modern coinage joining Oak (the oak tree) to a -lin ending (echoing Oakley, 'the oak meadow', a▶Obsidian#5176 in the U.S.From the word obsidian — Latin obsidianus, a glossy black volcanic glass (named after Obsius, w▶Odyn#5177 in the U.S.-y- spelling of Odin — from Old Norse Odinn, 'frenzy, fury, inspiration' — the chief god of Nor▶Ole#5178 in the U.S.Scandinavian form of Olaf/Olav — from Old Norse Anleifr, 'ancestor's descendant; heir, relic'▶Ozziel#5179 in the U.S.Spelling of Oziel/Uziel — from Hebrew Uzziel, 'God is my strength; the strength/power of God'▶Ottie#5285 in the U.S.Ottie is a homey diminutive of Otto or Otis, names from the Germanic element ot-/aud-, 'wealth,▶Obie#5373 in the U.S.Pet form of Obadiah ('servant of God', Hebrew); also a short form of Oberon ('noble bear'); rou▶Olyver#5374 in the U.S.-y- spelling of Oliver — from Latin oliva, 'olive tree' (a symbol of peace), or Old Norse Aleif▶Onix#5375 in the U.S.-i- spelling of Onyx — from Greek onyx, 'a fingernail/claw; the onyx (a banded black gemstone)'▶Orman#5417 in the U.S.Orman is an English surname turned given name, most often explained from an Old Norse or Old En▶Olden#5445 in the U.S.Olden is best read as a variant of Alden, an English surname from the Old English personal name▶Orange#5446 in the U.S.Orange is used as a given name from several honest routes: the color and fruit (from Old French▶