Here are 116 baby names starting with O: 57 for boys and 59 for girls. They come from Indian, Arabic, European, East Asian and other traditions, and each has its meaning and origin so you can compare them easily.
Names beginning with the same letter can sound very different across languages. Read the origin in brackets to find a name that fits your family’s culture, or to discover a beautiful name from somewhere new.
Baby names starting with O for boys and girls
| Boys | Girls |
|---|---|
| Oliver (English): Olive tree | Olivia (English): Olive tree |
| Owen (Welsh): Young warrior | Octavia (Latin): Eighth born |
| Oscar (English): Divine strength | Ophelia (Greek): Help |
| Orion (Greek): Hunter in Greek mythology | Odette (French): Wealthy |
| Otis (Germanic): Wealthy, fortunate | Oriana (Italian): Golden |
| Osman (Turkish): Young deer | Olive (English): Olive tree |
| Omar (Muslim – Arabic): Long-lived, eloquent | Odalis (Turkish): Wealthy |
| Otto (Germanic): Wealthy | Olesia (Russian): Defender of mankind |
| Orlando (Spanish): Famous land | Orla (Irish): Golden princess |
| Oren (Hebrew): Pine tree | Oona (Irish): Lamb |
| Osamu (Japanese): Discipline, study | Ozlem (Turkish): A wish |
| Onur (Turkish): Honor | Ottilie (German): Wealthy |
| Osiris (Egyptian): God of the afterlife | Odalys (Greek): Song |
| Octavius (Latin): Eighth born | Olympia (Greek): From Mount Olympus |
| Odin (Norse): Chief god in Norse mythology | Orli (Hebrew): Light of God |
| Omid (Persian): Hope | Opal (English): Precious gemstone |
| Osbert (Germanic): Bright god | Ora (Hebrew): Light |
| Odysseus (Greek): Hero in Greek mythology | Ottilia (German): Prosperous in battle |
| Orville (French): Gold town | Onyx (English): Black gemstone |
| Omer (Muslim – Arabic): Flourishing, long-lived | Osanna (Italian): Praise to God |
| Ocean (English): Large body of water | Olaya (Spanish): Saintly |
| Osvald (Scandinavian): God’s power | Ondine (French): Little wave |
| Oberon (Germanic): Noble bear | Omara (Arabic): Flourishing, flourishing woman |
| Osric (Old English): Divine ruler | Orquidea (Spanish): Orchid |
| Osias (Greek): God’s salvation | Orlena (French): Golden |
| Orhan (Turkish): Chief, ruler | Olwen (Welsh): White footprint |
| Oisin (Irish): Little deer | Olga (Russian): Holy, blessed |
| Omero (Italian): Homer, pledge | Ophira (Hebrew): Gold |
| Octavio (Spanish): Eighth born | Osana (Spanish): Saved, delivered |
| Omkar (Hindi/Sanskrit): Sound of Om | Odelle (French): Wealthy |
| Ossian (Irish): Little deer | Oyuna (Mongolian): Rejoice |
| Osian (Welsh): Little deer | Odelia (Hebrew): Praise God |
| Orel (Slavic): Eagle | Orly (Hebrew): Light |
| Osvaldo (Spanish): God’s power | Onna (Japanese): Woman |
| Orpheus (Greek): Poet and musician in Greek mythology | Orinda (Spanish): Gold |
| Obed (Hebrew): Servant, worshiper | Olena (Ukrainian): Torch, light |
| Ozzy (English): Divine strength | Odila (German): Wealthy |
| Oran (Irish): Light, pale | Orabel (French): Beautiful prayer |
| Orson (English): Bear cub | Orna (Hebrew): Pine tree |
| Oktay (Turkish): Brave moon | Oksana (Ukrainian): Praise God |
| Oleander (English): A flowering shrub | Ofra (Hebrew): Fawn |
| Orestes (Greek): Mountain | Osma (Arabic): Highest |
| Obadiah (Hebrew): Servant of God | Oliana (Hawaiian): Oleander flower |
| Ojas (Hindi/Sanskrit): Energy, strength | Oriole (English): Songbird |
| Omri (Hebrew): My sheaf | Ozara (Persian): Light, dawn |
| Oskar (Germanic): Spear of the gods | Omaima (Muslim – Arabic): One who has good expectations |
| Ozan (Turkish): Poet, bard | Oksanna (Ukrainian): Praise God |
| Oleg (Russian): Holy, blessed | Omnia (Muslim – Arabic): Wish, hope |
| Omarion (African-American): Elevated, exalted | Orabella (Italian): Beautiful prayer |
| Ozias (Greek): God’s salvation | Ona (Lithuanian): Grace |
| Osaze (African): God’s gift | Olaia (Basque): Bird |
| Oskari (Finnish): Anvil | Omaira (Arabic): Red, eloquent |
| Ovidiu (Romanian): Shepherd | Oyku (Turkish): Story, tale |
| Ojaswin (Hindi/Sanskrit): Energetic, strong | Orianne (French): Golden |
| Oluwaseun (African): Thank God | Orinthia (Greek): Mountain |
| Owais (Muslim – Arabic): Gifted, elevated | Onnika (Inuit): Flowing water |
| Ovid (Latin): Shepherd | Omisha (Hindi/Sanskrit): Goddess of birth and death |
| Orlaith (Irish): Golden princess | |
| Orlanda (Italian): Famous land |
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