Olukayode - African Yoruba name meaning "God brings happiness."
Ominotago - Native American Cheyenne name meaning "beautiful voice."
Ori - Hebrew name meaning "my light."
Ottalie - Swedish form of German Ottilia, meaning "wealthy."
Orestes - Greek name derived from the word orestias, meaning "of the mountains." In mythology, this is the name of the son of Agamemnon.
Olivia - English name created by Shakespeare who may have intended it to be a feminine form of Oliver, probably meaning "elf army."
Oro - Basque name meaning "all."
Ops - Roman Latin name meaning "plenty." In mythology, this is the name of an earth goddess, the wife of Saturn. Identified with Greek Rhea.
Ophiuchus - Greek name meaning "serpent bearer." This is the name of one of the constellations listed by Ptolemy, depicted as a man supporting a serpent. The man depicted in the constellation is thought by some to actually be the demigod Asclepius.
Oleksandr - Variant spelling of Ukrainian Oleksander, meaning "defender of mankind."
Oni -   African Yoruba name meaning "born in a sacred abode."
Orpah - Hebrew name meaning "forelock, mane" or "gazelle, hind." In the bible, this is the name of a Moabite woman. 
Obed - Anglicized form of Hebrew Owbed, meaning "serving, worshiping." In the bible, this is the name of several characters, including a son of Ruth. 
Ophion - Greek name meaning "serpent." According to Orphic mythology, this was the name of a god-king of the world before Rhea and Cronus cast him and his consort Eurynome into Tartarus.
Otis - English surname transferred to forename use, meaning "son of Otto."
Othniel - Anglicized form of Hebrew Othniyel, meaning "lion of God." In the bible, this is the name of the son of Kenaz.
Ollie - Unisex pet form of English Oliver and Olivia, both probably meaning "elf army."
Orion - Greek name, probably meaning "mountain man." But some sources say that the name may actually be of Akkadian origin; if so, it means "light of heaven." In mythology, this is the name of one of the Titan gods, a primordial hunter who was killed by a scorpion. A constellation was named after him. Orion had two dogs; their names were: Arktophonos and Ptoophagos. 
Olamide - African Yoruba name meaning "wealth has arrived."
Ottilie - Variant spelling of Swedish Ottalie, meaning "wealthy."
Oli - Short form of English Oliver, probably meaning "elf army."
Ophir - Anglicized form of Hebrew Owphiyr, meaning "gold" or "reducing to ashes." In the bible, this is the name for gold and its characteristics, the name of a land or city, and the name of the eleventh son of Joktan.
Oighrig - Possibly a modern variant spelling of Scottish Gaelic Aithbhreac, meaning "new speckled one."
Oliana - Hawaiian name meaning "oleander."
Olli - Pet form of Finnish Olavi, meaning "heir of the ancestors."
Ophiouchos - Greek name meaning "serpent bearer." This is the name of a constellation depicted as a man supporting a serpent. The man is thought by some to be the demigod Asclepius, who learned the secret of life and death from a serpent and was killed for this by Zeus to prevent him from sharing his knowledge with mankind.
Orfiel - Archangel name, possibly meaning "my neck (is) God." He is said to direct his gaze backward in time to the world of the past. He is not at all connected with any activity of the present. Also spelled Orifiel.
Onesime - French form of Latin Onesimus, meaning "profitable, useful."
Ohndreea - Variant form of English Andrea, meaning "man; warrior."
Origenes - Greek name probably composed of oros "mountain" and genes "born," hence "mountain-born." 
Olumide - African Yoruba name meaning "God arrives."
Ocumwhowurst - Native American Cheyenne name meaning "yellow wolf."
Otsoko - Basque name meaning "wolf cub."
Orrell - English surname transferred to forename use, composed of the Old English elements ora "ore" and hyll "hill," hence "ore hill."
Olanrewaju - African Yoruba name meaning "my wealth is the future."
Orit - Variant form of Hebrew Ora, meaning "light."
Osborn - Middle English form of Anglo-Saxon Osbeorn, meaning "divine-bear."
Oluwasegun - African Yoruba name meaning "God has been victorious."
Ourbanos - Greek name meaning "of the city." In the New Testament bible, this is the name of a certain Christian.
Ömer - Turkish form of Arabic Omar, meaning "alive, living." 
Olya - Pet form of Russian Olga, meaning "dedicated to the gods; holy."
Ovidius - Roman family name derived from Latin ovis ("sheep"), meaning "sheep herder."
Osbert - Middle English form of Anglo-Saxon Osbeorht, meaning "god-bright."
Olimpia - Older spelling of Greek Olympia, meaning "of Olympus." 
Ortle - Basque name meaning "firmament."
Onesimus - Latin form of Greek Onesimos, meaning "profitable, useful." In the bible, this is the name of an escaped slave.
Origen - Short form of Greek Origenes, probably meaning "mountain-born."
Oluwaseyi - African Yoruba unisex name meaning "God made this."
Ottis - Variant spelling of English Otis, meaning "son of Otto."
Olina - Hawaiian name meaning "joyous."
Olympiodoros - Ancient Greek name composed of the name Olympos and the word doron "gift," hence "gift of Olympos."
Ottavia - Feminine form of Italian Ottavio, meaning "eighth."
Orel -   Jewish byname derived from the Slavic word orel, meaning "eagle."
Ovdotya - Variant form of Russian Avdotya, meaning "good-seeming."
Olyvia - Variant spelling of English Olivia, probably meaning "elf army."
Ofer - Variant spelling of English Ofir, meaning "gold" or "reducing to ashes."
Osbeorn - Anglo-Saxon name composed of the Old English elements os "divinity, god" and beorn "bear," hence "divine-bear." Equivalent to Old Norse Ásbjorn.
Orville - English literary name created by Fanny Burney, author of the 1778 novel Evelina, probably intended to mean "golden city."
Orifiel - Archangel name, possibly meaning "my neck (is) God." He is said to direct his gaze backward in time to the world of the past. He is not at all connected with any activity of the present. Also spelled Orfiel.
Ondřej - Czech form of Greek Andreas, meaning "man; warrior."
Olek - Short form of Ukrainian Oleksander, meaning "defender of mankind." 
Oliver - English form of French Olivier, probably meaning "elf army."
Oeneus - Latin form of Greek Oineus, possibly meaning "wine-maker." In mythology, this is the name of a Calydonian king.
Om - Hindi name derived from Sanskrit om, a word considered to be the "primal sound." It is the most sacred syllable in Hinduism, and most mantras begin with it.
Oba - Egyptian name meaning "scepter holder; king."
Omid - Persian unisex name meaning "hope."
Olga - Feminine form of Russian Oleg, meaning "dedicated to the gods; holy."
Ormr - Old Norse byname derived from the word ormr, meaning "dragon, serpent, snake."
Olympia - From the Greek place name, a feminine form of Greek Olympos ("home of the gods"), meaning "of Olympus." 
Oliwia - Polish form of English Olivia, probably meaning "elf army." 
Orly - Variant spelling of Hebrew Orli, meaning "light is mine."
Odran - Anglicized form of Irish Gaelic Odhrán, meaning "little sallow one." 
Oluwafunmilayo - Variant spelling of African Yoruba Olufunmilayo, meaning "God gave me joy."
Olwyn - Variant spelling of Welsh Olwen, meaning "footprint/track of the holy one."
Owen -   Anglicized form of Irish Gaelic Eóghan, meaning "born of yew."
Olivier - Of Norman French origin, thus ultimately of Germanic origin, probably from German Alfihar, meaning "elf army." The name was first used as a character name in the French epic La Chanson de Roland.
Orson - English surname transferred to forename use, from the old Norman French byname ourson, a diminutive of ours "bear," hence "little bear" or "bear cub."
Ovdotia - Variant spelling of Russian Ovdotya, meaning "good-seeming."
Ortwin - Middle High German name composed of the elements ort "point" and win "friend," hence "point-friend."
Oona - Anglicized form of Irish Gaelic Úna, possibly meaning "famine, hunger."
Ottó - Hungarian form of German Otto, meaning "wealthy."
Oskars - Latvian form of Old Norse Ásgeirr, meaning "god-spear."
Ozzie - Variant spelling of Middle English Oswald, meaning "divine power" or "divine ruler."
Orbogenos - Reconstructed ancient Brithonic form of Celtic Orbogen (Latin Urbgenius), meaning "privileged birth."
Odin - Scandinavian form of Old Norse Óðinn, meaning "poetry, song" and "eager, frenzied, raging." In mythology, this is the name of the chief god of the Aesir. Equated with Anglo-Saxon Woden.
Onyekachukwu - African Igbo unisex name meaning "who is greater than God?"
Ohtli -  Nahuatlunisex name meaning "road."
Ozzy - Variant spelling of Middle English Ozzie, meaning "divine power" or "divine ruler."
Ottavio - Italian form of Roman Latin Octavius, meaning "eighth."
Ofélia - Portuguese form of Latin Ofelia, meaning "help."
Olufunmilayo - African Yoruba name meaning "God gave me joy."
Ouranos - Greek name meaning "the heavens." In mythology, this is the name of the husband of Gaia and father of the Titans.
Olalla - Perhaps a pet form of Portuguese/Spanish Eulália, meaning "well-spoken."
Okpara - Egyptian name meaning "firstborn."
Osgood - English surname transferred to forename use, derived from the Anglo-Saxon personal name Osgod, meaning "divine Gaut."
Osvaldus - Latin form of Scandinavian Osvald, meaning "divine power" or "divine ruler."
Odovacar - Gothic form of Germanic Audawakrs, "watchful of wealth."
Oluwaseun - African Yoruba name meaning "we thank God."
Orbogen - Old Celtic name composed of the elements ōrbo "privileged" and gen "birth," hence "privileged birth." 
Owena - Feminine form of English and Welsh Owen, meaning "born of yew."
Ondria - Variant form of English Andrea, meaning "man; warrior."
Orlanda - Feminine form of Italian Orlando, meaning "famous land." 
Orochi - Japanese name meaning "big snake." In mythology, this is the nameof an eight-forked serpent who demanded virgin sacrifices. He was killed by the god-hero Susanoo.
Oluwatoyin - African Yoruba unisex name meaning "God is worthy to be praised."
Onesimos - Greek name meaning "profitable, useful." In the bible, this is the name of an escaped slave.
Odd - Norwegian form of Old Norse Oddr, meaning "point of a weapon."
Ormazd - Newer form of Persian Ahura Mazda, meaning "good and wise god."
Orian - Anglicized form of Middle Welsh Urien, meaning "privileged birth."
Ohndrea - Variant form of English Andrea, meaning "man; warrior."
Ola - Hawaiian name meaning "life; well-being."
Otthild - German name composed of the elements od "fortune, wealth" and hild "battle," hence "battle of fortune." This name was given to an asteroid discovered by Karl Wilhelm Reinmuth in Heidelberg, Germany on March 18, 1923. 
Okyrhoe - Greek name meaning "fast-flowing." In mythology, this is the name of a Naiad nymph, the daughter of Chiron.
Oke - Hawaiian form of English Oscar, meaning "god-spear."
Okelani - Hawaiian name meaning "from heaven."
Okeanos - Greek name meaning "ocean." In mythology, this is the name of a Titan, son of Uranus and Gaia, the personification of the world-ocean once believed to encircle the world.
Oksana - Ukrainian form of Greek Xenia, meaning "stranger, foreigner," but sometimes rendered "hospitable (esp. to foreigners)."
Olivie - Feminine form of French Olivier, probably meaning "elf army."
Osvaldo - Italian, Portuguese and Spanish form of Latin Osvaldus, meaning "divine power" or "divine ruler."
Omriy - Hebrew name meaning "pupil of Jehovah" or "servant of Jehovah." In the bible, this is the name of several characters, including a king of Israel.
Odilon - French form of German Odo, meaning "wealthy."
Ollin - Nahuatl name meaning "movement."
Ohanzee - Native American Sioux name meaning "shadow."
Olufunmilola - African Yoruba name meaning "God gives me wealth."
Odeleya - Hebrew name meaning "I will praise God."
Osiris - Greek form of Egyptian Asar, possibly meaning "something that has been made; a product." In Egyptian mythology, Asar/Osiris is the name of a god of the underworld.
Oden - Norwegian and Swedish form of Old Norse Óðinn, meaning "poetry, song" and "eager, frenzied, raging."
Oran -   Anglicized form of Irish Gaelic Odhrán, meaning "little sallow one."
Orpa - Variant spelling of Hebrew Orpah, meaning "forelock, mane" or "gazelle, hind." 
Orpheus - Greek name derived either from orbhao "deprived" or orphe "darkness." In mythology, this is the name of a musician who charmed Hades with his lyre in an attempt to rescue his wife from the underworld.
Otakar - Czech form of Gothic Odovacar, meaning "watchful of wealth."
Olujimi - African Yoruba name meaning "given by God."
Osip - Russian form of Greek Ioseph, meaning "(God) shall add (another son)."
Omega - English unisex name derived from the last letter of the Greek alphabet. This name was used occasionally by Victorian parents for a "last-born child." 
Orval - Variant spelling of English Orville, probably meaning "golden city."
Olegario - Spanish form of Germanic Heilgar, meaning "hearty spearman."
Ohitekah - Native American Sioux name meaning "brave."
Odilia - Feminine form of German Odo, meaning "wealthy."
Own - Hebrew name meaning "vigor" or "wealth." In the bible, this is the name of a leader of the Korah group.
Oulixes - Contracted form of Greek Oulixeus, probably meaning "to be angry, to hate."
Or-lee - Hebrew name meaning "light is mine."
Opaline - Elaborated form of English Opal, meaning "gem, precious stone."
Opeyemi - African Yoruba name meaning "I should give praise."
Ogrifina - Variant form of Russian Agrafina, meaning "wild horse."
Oulam - Variant spelling of Egyptian Olam, meaning "eternal." 
Owyn - Variant spelling of Welsh Owen, meaning "born of yew."
Ottah - Egyptian name meaning "born third."
Omri - Anglicized form of Hebrew Omriy, meaning "pupil of Jehovah" or "servant of Jehovah." In the bible, this is the name of several characters, including a king of Israel.
Ovadya - Variant spelling of Hebrew Obadyah, meaning "servant of God." 
Osanna - Latin form of Greek Hōsanna, meaning "deliver us."
Ottaviano - Italian form of Roman Latin Octavianus, meaning "eighth."
Olwen - Welsh Arthurian legend name of the heroine of Culhwch and Olwen, composed of the elements ol "footprint, track," and (g)wen "fair, holy, white," hence "footprint/track of the holy one." Olwen was the daughter of the fierce giant Ysbaddaden who was fated to die if she ever married. She was a magical girl who caused flowers to spring up wherever she went. When Culhwch (a cousin of King Arthur) came to seek her hand, Ysbaddaden required that he complete a series of nearly impossibly tasks before he would grant permission for them to marry.
Octavian - Short form of Roman Latin Octavianus, meaning "eighth."
Oneida - English name derived from the name of the Iroquois tribe, meaning "standing stone, upright stone."
Osbourne - English surname transferred to forename use, derived from a variant form of Osborn, meaning "divine-bear."
Owain - Welsh Arthurian legend name of a Knight of the Round Table, derived from Latin Eugenius, meaning "born of yew." 
Ogaleesha - Native American Sioux name meaning "wears a red shirt."
Onesiphorus - Latin form of Greek Onesiphoros, meaning "bringer of profit." In the bible, this is the name of a Christian praised by Paul for his courage and kindness.
Olysseus - Variant form of Greek Odysseus, probably meaning "to be angry, to hate."
Ossian - Anglicized form of Irish Gaelic Oisín, meaning "little deer."
Olive - English name derived from the tree name, "olive," from Latin oliva, from Greek elaia, the name of a Mediterranean fruit-bearing evergreen tree. The name was popular in the 19th century because the olive branch has been a symbol of "peace" since biblical times.
Odder - Old Swedish form of Old Norse Oddr, meaning "point of a weapon."
Oprah - Feminine variant spelling of Hebrew unisex Ophrah, meaning "fawn." 
Odion - Egyptian name meaning "born of twins."
Ognyan - Bulgarian name derived from the word ognen, meaning "fire."
Ognian - Variant spelling of Bulgarian Ognyan, meaning "fire."
Osheen - Anglicized form of Irish Gaelic Oisín, meaning "little deer."
Otho - Old Norman form of German Otto, meaning "wealthy."
Osamu - Japanese name meaning 1) "chronicler," 2) "disciplined," 3) "logical," 4) "obtainer," 5) "to reign," 6) "ruler."
Odhiambo - African Luo name meaning "born in the evening."
Opher - Variant spelling of English Ophir, meaning "gold" or "reducing to ashes."
Osku - Pet form of Finnish Oskari, meaning "god-spear."
Olabisi - Egyptian name meaning "brings joy."
Owded - Hebrew name meaning "restorer." In the bible, this is the name of the father of Azariah, and the name of a prophet who lived in the time of King Ahaz.
Ormonde - Variant spelling of English Ormond, meaning "descendant of Ruadh."
Odalis - Spanish unisex form of French Odilon, meaning "wealthy."
Opal - English name, derived from the name of the gemstone, from Greek opallios, from Sanskrit utpala, meaning "gem, precious stone." This is the birthstone for the month of October.
Ohndria - Variant form of English Andrea, meaning "man; warrior."
Ourania - Greek myth name of a muse of astronomy, derived from the word ouranios, meaning "heavenly."
Olympos - Greek name of unknown etymology, but usually rendered "home of the gods." In mythology, this is the name of the legendary mountain or paradise where the gods were said to live. 
Ortrun - German name composed of the elements ort "point" and rún "rune, secret," hence "point-rune."
Ona -   Lithuanian form of Greek Hanna, meaning "favor; grace."
Olle - Pet form of Swedish Olov, meaning "heir of the ancestors."
Odji - Egyptian name meaning "wicked."
Odila - Variant spelling of German Odilia, meaning "wealthy."
Ode - Egyptian name meaning "from the road."
Oded - Anglicized form of Hebrew Owded, meaning "restorer." In the bible, this is the name of the father of Azariah, and the name of a prophet who lived in the time of King Ahaz.
Odjit - Egyptian name meaning "wicked."
Odelia -   Variant spelling of German Odilia, meaning "wealthy."
Odalys -  Feminine variant spelling of Spanish unisex Odalis, meaning "wealthy."
Odette - Feminine diminutive form of French Oda, meaning "little wealthy one."
Oddmund - Norwegian and Swedish name composed of the Old Norse elements oddr "point of a weapon" and mundr "protection."
Odell - English surname transferred to forename use, from a place name composed of the Old English elements wad "woad (a plant yielding blue dye)" and hyll "hill," hence "woad hill."
Odile - Feminine form of French Odilon, meaning "wealthy."
Onni - Finnish name meaning "luck."
Ofra - Variant spelling of Hebrew unisex Ophrah, meaning "fawn." 
Ogrofenka - Diminutive form of Russian Ogrifina, meaning "wild horse."
Odol - Basque name meaning "blood."
Olav - Danish and Norwegian form of Old Norse Óláfr, meaning "heir of the ancestors."
Ozanne - Variant spelling of French Osanne, meaning "deliver us."
Owmar -  Hebrew name meaning "eloquent, talkative" or "speaker." In the bible, this is the name of a grandson of Esau.
Oineus - Greek name possibly meaning "wine-maker." In mythology, this is the name of a Calydonian king.
Olympias - Ancient Greek name of the mother of Alexander the Great. It is a feminine form of Greek Olympos ("home of the gods"), meaning "of Olympus." 
Ora - English unisex name derived from Latin orare, meaning "to pray." Compare with strictly feminine Ora.
Oonagh - Anglicized form of Irish Gaelic Úna, possibly meaning "famine, hunger."
Olayinka - African Yoruba name meaning "wealth surrounds me."
Ownam - Hebrew name meaning "vigorous, strong." In the bible, this is the name of the father of Jada. 
Otes - Norman French name derived from German Otto, meaning "wealthy."
Osama - Variant spelling of Arabic Usama, meaning "lion."
Olaf - Scandinavian form of Old Norse Óláfr, meaning "heir of the ancestors."
Oleksiy - Ukrainian form of Latin Alexius, meaning "defender."
Oriane - French from of Latin Oriana, possibly meaning "golden."
Osmund - Anglo-Saxon equivalent of Old Norse Ásmundr, composed of the Old English elements os "god" and mund "protection," hence "divine protection." 
Ovadia - Variant spelling of Hebrew Ovadya, meaning "servant of God."
Otsanda - Variant spelling of Basque Otsana, meaning "she-wolf."
Otsana - Basque name meaning "she-wolf."
Otieno - African Luo name meaning "born at night."
Orenda - Native American Iroquois name meaning "magic power."
Oceanus - Latin form of Greek Okeanos, meaning "ocean." In mythology, this is the name of a son of Uranus and Gaia, a Titan god and personification of the ocean once believed to encircle the world.
Otniel - Variant spelling of English Othniel, meaning "lion of God." 
On - Anglicized form of Hebrew Own, meaning "vigor" or "wealth." In the bible, this is the name of a leader of the Korah group.
Odo - Variant form of German Otto, meaning "wealthy."
Ochieng - African Luo name, meaning "born when the sun shines."
Olena - Ukrainian form of Greek Helénē, possibly meaning "torch."
Osman -   Turkish form of Arabic Uthman, meaning "baby bustard." A bustard is a crane-like game bird.
Oana - Short form of Romanian Ioana, meaning "God is gracious."
Owphiyr - Hebrew name meaning "gold" or "reducing to ashes." In the bible, this is the name for gold and its characteristics, the name of a land or city, and the name of the eleventh son of Joktan.
Osbeorht - Anglo-Saxon name composed of the Old English elements os "god" and beorht "bright," hence "god-bright."
Ourias - Greek form of Hebrew Uwriyah, meaning "light of Jehovah" or "my light is Jehovah." In the bible, this is the name of several characters, including the husband of Bathsheba. 
Otoahhastis - Native American Cheyenne name meaning "tall bull."
Obadiah - Anglicized form of HebrewObadyah, meaning "servant ofGod." In the bible, this is the name of many characters, including a minor prophet.
Orso - Italian form of Roman Latin Ursus, meaning "bear."
Ocean - English unisex name derived from the vocabulary word, from Latin Oceanus, from Greek Okeanos, meaning "ocean."
Obed-edom - Anglicized form of Hebrew Obed Edown, meaning "servant of Edom" or "he who serves the Edomites." In the bible, this is the name of a Levite and a Gittite.
Obi - African Igbo name meaning "heart."
Osaze - Egyptian name meaning "loved by God."
Otokar - Czech form of Gothic Odovacar, meaning "watchful of wealth."
Orabella - Italian name meaning "golden beautiful."
Olabode - African Yoruba name meaning "wealth returns."
Ophelos - Greek name derived from the vocabulary word, ophelos, meaning "help."
Omorose - Egyptian name meaning "beautiful."
Ovídio - Portuguese form of Roman Latin Ovidius, meaning "sheep herder."
Óscar - Spanish form of Old High German Ansgar, meaning "god-spear."
Odoacer - Latinized form of Germanic Audawakrs, meaning "watchful of wealth."
Óskar - Icelandic form of Old Norse Ásgeirr, meaning "god-spear."
Orrin - Variant spelling of English Oran, meaning "little sallow one."
Ondrea - Variant form of English Andrea, meaning "man; warrior."
Othello - English name created by Shakespeare and thought to probably have been inspired by Italian Thorello ("young bull"), perhaps changing only the first element from Thor- to Otho, hence "rich youth."
Odakota - Native American Sioux name meaning "friend."
Odahingum - Native American Cheyenne name meaning "rippling water."
Oda -   English name derived from Greek oide, meaning "song." Compare with masculine Oda.
Odharnait - Feminine form of Irish Gaelic Odhrán, meaning "little sallow one." 
Orfeo - Italian form of Greek Orpheus, meaning either "deprived" or "darkness."
Osweald - Anglo-Saxon name composed of the Old English elements os "god" and weald "wielder of power," hence "divine power" or "divine ruler."
Oanez - Breton form of English Agnes, meaning "chaste; holy." 
Ocunnowhurst - Variant form of Cheyenne Ocumwhowurst, meaning "yellow wolf."
Olov - Swedish form of Scandinavian Olaf, meaning "heir of the ancestors."
Oskarbi - Basque name meaning "clear sky."
Orkatz - Basque name meaning "deer."
Ormond - Irish surname transferred to forename use, from an Anglicized form of Gaelic Ó Ruaidh, meaning "descendant of Ruadh."
Oral - Swiss form of Roman Latin Aurelius, meaning "golden."
Ofir - Variant spelling of English Ophir, meaning "gold" or "reducing to ashes."
Ovidiu - Romanian form of Roman Latin Ovidius, meaning "sheep herder."
Oswin - Anglo-Saxon name composed of the Old English elements os "god" and win "friend," hence "divine friend" or "friend of God."
Ondreea - Variant form of English Andrea, meaning "man; warrior."
Ottilia - Feminine form of German Otto, meaning "wealthy."
Ogden - English habitational surname transferred to forename use, composed of the Old English elements ac "oak" and denu "valley," hence "oak valley."
Oddr - Old Norse name derived from the word oddr, meaning "point of a weapon."
Onyeka - Feminine short form of African Igbo unisex Onyekachukwu, meaning "who is greater than God?"
Oseye - Egyptian name meaning "happy."
Orabelle - French form of Italian Orabella, meaning "golden beautiful."
Ovsanna - Armenian form of Greek Hōsanna, meaning "deliver us." 
Octavia - Feminine form of Roman Octavius, meaning "eighth."
Ofydd - Welsh form of Roman Latin Ovid, meaning "sheep herder."
Oswallt - Welsh form of English Oswald, meaning "divine power" or "divine ruler."
Oz - Hebrew name meaning "might, strength." Compare with masculine forms of Oz.
Ottila - Variant spelling of German Ottilia, meaning "wealthy."
Ottokar - German form of Gothic Odovacar, meaning "watchful of wealth."
Otsoa - Basque name meaning "wolf."
Osumare - African Yorubaname meaning "rainbow."
Osasune - Basque name meaning "health."
Orabela - Esperanto form of Italian Orabella, meaning "golden beautiful."
Orsino - Italian form of Roman Latin Ursinus, meaning "bear-like."
Orsina - Feminine form of Italian Orsino, meaning "bear-like."
Ormarr - Old Norse name composed of the elements orm "serpent" and herr "army," hence "serpent army."
Ooljee - Native American Navajo name meaning "moon."
Oinone - Greek name meaning "wine." In mythology, this is the name of a Naiad nymph who was the first wife of Paris. 
Oinaze - Basque name meaning "pain."
Oihana - Basque name meaning "forest."
Odille - Variant spelling of French Odile, meaning "wealthy."
Ouida - Pet form of French Louise, meaning "famous warrior." 
Osane - Basque name meaning "cure, remedy."
Olier - Breton form of French Olivier, probably meaning "elf army."
Olavo - Portuguese form of German Alfihar, meaning "elf army."
Oved - Variant spelling of Hebrew Owbed, meaning "serving, worshiping."
Onam - Anglicized form of Hebrew Ownam, meaning "vigorous, strong." In the bible, this is the name of the father of Jada. 
Olof - Variant spelling of Swedish Olov, meaning "heir of the ancestors."
Olev - Estonian form of Scandinavian Olaf, meaning "heir of the ancestors."
Otoahnacto - Native American Cheyenne name meaning "bull bear."
Octavianus - From Roman Latin Octavius, meaning "eighth."
Ohcumgache - Native American Cheyenne name meaning "little wolf."
Oilbhreis - Gaelic form of French Olivier, probably meaning "elf army."
Oulixeus - Variant form form of Greek Odysseus, probably meaning "to be angry, to hate."
Orlandus - Latin form of German Hrodland, meaning "famous land." 
Omawnakw - Native American Hopi name meaning "cloud feather."
Olivette - Pet form of English Olive, meaning "olive tree."
Ogrufina - Variant form of Russian Agrafina, meaning "wild horse."
Octavius - Roman family name, derived from the Latin word octavus, meaning "eighth."
Ogrufena - Variant form of Russian Agrafina, meaning "wild horse."
Otaktay - Native American Sioux name meaning "kills many."
Ostargi - Basque name meaning "aurora."
Ostadar - Basque name meaning "rainbow."
Osabide - Basque name meaning "healing."
Orvokki - Finnish name meaning "pansy flower."
Orreaga - Basque name meaning "juniper grove."
Orlenda - English variant spelling of Italian Orlanda, meaning "famous land."
Orianne - Variant spelling of French Oriane, possibly meaning "golden."
Onndria - Variant form of English Andrea, meaning "man; warrior."
Ololara - African Yoruba name meaning "born at the right time."
Oilioll - Variant spelling of Irish Gaelic Ailill, meaning "elf."
Ohrmazd - Newer form of Persian Ahura Mazda, meaning "good and wise god."
Octavio - Spanish form of Roman Latin Octavius, meaning "eighth."
Ocyrhoe - Latin form of Greek Okyrhoe, meaning "fast-flowing." In mythology, this is the name of a Naiad nymph, the daughter of Chiron.
Otilie - Czech form of German Ottilia, meaning "wealthy."
Ostots - Basque name meaning "thunder."
Oskari - Finnish form of Old Norse Ásgeirr, meaning "god-spear."
Osahar - Egyptian name meaning "God hears me."
Osanne - French form of Greek Hōsanna, meaning "deliver us."
Orsola - Italian form of Latin Ursula, meaning "little she-bear."
Orlagh - Anglicized form of Irish Gaelic Órfhlaith, meaning "gold-princess."
Onisim - Russian form of Greek Onesimos, meaning "profitable, useful."
Olympe - French form of Greek Olympia, meaning "of Olympus." 
Olghar - Scottish Gaelic form of French Olivier, probably meaning "elf army."
Oilill - Variant spelling of Irish Gaelic Ailill, meaning "elf."
Oilbhe - Irish form of English Olive, meaning"olive tree." 
Ogafia - Variant spelling of Russian Agafia, meaning"good."
Ossia - Feminine form of English Ossian, meaning "little deer."
Ortzi - Basque name meaning "sky."
Olavi - Finnish form of Scandinavian Olaf, meaning "heir of the ancestors."
Oeric - Anglo-Saxon name, possibly meaning "golden." 
Obrad - Serbian name meaning "happiness."
Ouen - Variant form of Welsh Owen, possibly meaning "born of yew."
Otso - Finnish name meaning "bear."
Orli - Variant spelling of Hebrew Or-lee, meaning "light is mine."
Orah - Variant spelling of Hebrew Ora, meaning "light."
Oleg - Russian form of Scandinavian Helge, meaning "dedicated to the gods; holy."
Oiva - Finnish name meaning "splendid."
Oili - Finnish form of Russian Olga, meaning "dedicated to the gods; holy."
Olympus - Latin form of Greek Olympos, of unknown etymology, but usually rendered "home of the gods." In mythology, this is the name of the legendary mountain or paradise where the gods were said to live. 
Owein - Variant spelling of Welsh Owain, meaning "born of yew."
Olha - Ukrainian form of Russian Olga, meaning "dedicated to the gods; holy."
Ophrah - Hebrew unisex name meaning "fawn." In the bible, this is the name of two places, and the name of a son of Meonothai. 
Olwin - Variant spelling of Welsh Olwen, meaning "footprint/track of the holy one."
Olam - Egyptian name meaning "eternal." In mythology, this is an epithet belonging to Ptah. Related to Hebrew Eylam.
Orla - Anglicized form of Irish Gaelic Órfhlaith, meaning "gold-princess."
Ottoline - Pet form of German Ottilia, meaning "wealthy."
Olufemi - Egyptian name meaning "beloved of the gods."
Oroitz - Basque name meaning "memory."
Orsolya - Hungarian form of Latin Ursula, meaning "little she-bear."
Onur - Turkish name meaning "honor."
Owbed - Hebrew name meaning "serving, worshiping." In the bible, this is the name of several characters, including a son of Ruth. 
Osvald - Scandinavian form of Old Norse Ásvaldr, meaning "divine power" or "divine ruler."
Orchid - English name derived from the flower name, from Greek orkhis, meaning"testicle," from Proto-Indo-European orghi-, the baseroot for for the word "testicle." The plant was given this name because of theshape of its root. 
Ole - Danish pet form of Scandinavian Olaf, meaning "heir of the ancestors."
Obadyah - Hebrew name meaning "servant of God." In the bible, this is the name of many characters, including a minor prophet.
Ove - Possibly a modern Scandinavian form of Old Danish Auwe, meaning "little edge." 
Oleksander - Ukrainian form of Greek Alexandros, meaning "defender of mankind."
Orlando - Italian form of Latin Orlandus, meaning "famous land." 
Oswald - Middle English form of Anglo-Saxon Osweald, meaning "divine power" or "divine ruler."
Onesiphoros - Greek name meaning "bringer of profit." In the bible, this is the name of a Christian praised by Paul for his courage and kindness.
Ormonda - Feminine form of English Ormond, meaning "descendant of Ruadh."
Oenone - Latin form of Greek Oinone, meaning "wine." In mythology, this is the name of a Naiad nymph who was the first wife of Paris. 
Oxana - Variant spelling of Ukrainian Oksana, meaning "stranger, foreigner," but sometimes rendered "hospitable (esp. to foreigners)."
Onfroi - Norman French form of Norman Germanic Hunfrid, meaning "giant peace."
Ophelia - Feminine form of Greek Ophelos, meaning "help." This name was used by Shakespeare for an ill-omened character in Hamlet.
Omusa - Native American Miwok name meaning "misses with arrows."
Osher - Hebrew name meaning "happiness."
Othniyel - Hebrew name meaning "lion of God." In the bible, this is the name of the son of Kenaz.
Oldřich - Czech form of German Ulrich, meaning "prosperity and power."
Oisín - Irish name composed of the word os "deer" and a diminutive suffix, hence "little deer." In mythology, this is the name of a son of Fionn mac Cumhail.
Özlem - Turkish name meaning "yearning."
Óengus - Scottish form of Gaelic Aonghus, meaning "excellent valor."
Órlaith - Variant spelling of Irish Gaelic Órfhlaith, meaning "gold-princess."
Ödön - Hungarian form of English Edmund, meaning "protector of prosperity."
Océane - French name derived from the vocabulary word océan, from Latin Oceanus, from Greek Okeanos, meaning "ocean."
Önundr - Variant form of Old Norse name Anundr, meaning "triumph of the ancestors."
Óðinn - Old Norse name derived from the word óðr, meaning "poetry, song" and "eager, frenzied, raging." In mythology, this is the name of the chief god of the Aesir. Equated with Anglo-Saxon Woden.
Oszkár - Hungarian form of Old Norse Ásgeirr, meaning "god-spear."
Otávio - Portuguese form of Roman Latin Octavius, meaning "eighth."
Orbán - Hungarian form of Greek Ourbanos, meaning "of the city."
Onóra - Irish form of Latin Honora, meaning "honor, valor."
Ödi - Pet form of Hungarian Ödön, meaning "protector of prosperity."
Órfhlaith - Irish Gaelic name composed of the elements ór "gold" and flaith "princess," hence "gold-princess."
Ólafur - Icelandic form of Old Norse Óláfr, meaning "heir of the ancestors."
Óláfr - Variant form of Old Norse Ánleifr, meaning "heir of the ancestors."
Örjan - Swedish form of Greek Georgios, meaning "earth-worker, farmer."
Özge - Turkish name meaning "different, other."
Odhrán - Irish Gaelic name composed of the word odhar "dun; pale green; sallow" and a diminutive suffix, hence "little sallow one."
Ósvaldr - Variant form of Old Norse Ásvaldr, meaning "divine power" or "divine ruler."
Özgür - Turkish unisex name meaning "free."
Ofra - Variant spelling of Hebrew unisex Ophrah, meaning "fawn." 
Ohtli -  Nahuatlunisex name meaning "road."
Ofelia - Latin form of Greek Ophelia, meaning "help." 
Ola - Norwegian and Swedish form of Scandinavian Olaf, meaning "heir of the ancestors."
Olívia - Portuguese form of English Olivia, probably meaning "elf army."
Ollie - Unisex pet form of English Oliver and Olivia, both probably meaning "elf army."
Olufemi - African Yoruba name meaning "God loves me."
Oluwaseyi - African Yoruba unisex name meaning "God made this."
Oluwatoyin - African Yoruba unisex name meaning "God is worthy to be praised."
Omar (arabic - عمر):  Anglicized form of Hebrew Owmar, meaning "eloquent, talkative" or "speaker." In the bible, this is the name of a grandson of Esau.
Omega - English unisex name derived from the last letter of the Greek alphabet. This name was used occasionally by Victorian parents for a "last-born child." 
Omer - Hebrew name derived from the word omer, meaning "sheaf." In the bible, this is "a measure" of dry things, containing the tenth part of an Ephah.
Omid - Persian unisex name meaning "hope."
Ondrej - Slovak form of Greek Andreas, meaning "man; warrior."
Oota dabun - Native American Algonquin name meaning "day star."
Onyekachukwu - African Igbo unisex name meaning "who is greater than God?"
Ora (hebrew - אוֹרָה):  English unisex name derived from Latin orare, meaning "to pray."
Ophrah - Hebrew unisex name meaning "fawn." In the bible, this is the name of two places, and the name of a son of Meonothai. 
Oralee (hebrew - אוֹרָה-לִי):  Hebrew name meaning "my light."
Orna (hebrew - אָרְנָה):  Hebrew name meaning "let there be light" or "pine tree." 
Òscar - Catalan form of Old High German Ansgar, meaning "god-spear."
Oscar -   Irish Gaelic form of Scottish Gaelic Osgar, meaning "deer-lover." 
Oskar - Scandinavian form of Old Norse Ásgeirr, meaning "god-spear."
Otto - Modern form of Old German Audo, meaning "wealthy."
Ovidio - Italian and Spanish form of Roman Latin Ovidius, meaning "sheep herder."
Obed edown - Hebrew name meaning "servant of Edom" or "he who serves the Edomites." In the bible, this is the name of a Levite and a Gittite.
Ocean - English unisex name derived from the vocabulary word, from Latin oceanus, from Greek okeanos, meaning "ocean."
Oz - Compare with feminine Oz. English short form of longer names beginning with Os-, meaning "god."
Oda - Old French form of German Otto, meaning "wealthy." Compare with feminine Oda.
Odalis - Spanish unisex form of French Odilon, meaning "wealthy."

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