Baby Names That Start With O

Explore baby names that start with the letter O. From timeless traditional favorites to rare and unique international gems, names starting with O offer a wonderful range of melodic sounds, origins, and deeply rooted meanings. Browse our curated collection below to find the perfect O name for your baby boy or girl.

62 names

• Oakley — From the oak meadow.
• Oaklynn — From the oak meadow pool.
• Obadiah — Servant of God.
• Obi — Heart.
• Octavia — The eighth-born.
• Octavian — The eighth-born.
• Oden — Oden carries the meaning of transmit, reflecting cherished Japanese cultural id…
• Odette — Wealthy.
• Odhran — Little pale-green one.
• Odin — All-father; god of wisdom and war.
• Oen — Beauty of face.
• Ogin — Ogin carries the meaning of silver, reflecting cherished Japanese cultural idea…
• Oisin — Little deer; a young fawn.
• Okaru — Lightly.
• Okatsu — Okatsu carries the meaning of victory, reflecting cherished Japanese cultural i…
• Okina — A cherished Japanese name signifying summer greens, graceful canola flower, bri…
• Oko — A cherished Japanese name signifying child, beloved one, bringing blessing and…
• Okou — Happiness.
• Olive — The olive tree; peace.
• Oliver — Olive tree; symbol of peace.
• Olivia — Olive tree — peace, dignity, friendship.
• Olivier — The olive tree; peace.
• Olwen — White footprint.
• Om — The sacred primal sound.
• Omako — A cherished Japanese name signifying child, beloved one, bringing blessing and…
• Omar — Flourishing; long-lived.
• Omari — God the highest; flourishing.
• Onni — Happiness; luck.
• Onou — Onou carries the meaning of concentrated, reflecting cherished Japanese cultura…
• Onyanko — A cherished Japanese name signifying child, beloved one, bringing blessing and…
• Onyx — The deep-black gemstone.
• Opal — Precious jewel; gem.
• Opaline — Like the opal gem.
• Ophelia — Help; serene wisdom.
• Oribe — A cherished Japanese name signifying blessing, grace, clear inlet, bringing ble…
• Orie — A cherished Japanese name signifying blessing, grace, clear inlet, bringing ble…
• Orin — Orin carries the meaning of wheel, reflecting cherished Japanese cultural ideal…
• Orion — The hunter; a brilliant constellation.
• Orla — Golden princess.
• Orlaith — Golden princess.
• Ornella — Flowering ash tree.
• Orpheus — Beautiful voice.
• Orson — Bear cub.
• Osako — A cherished Japanese name signifying child, beloved one, bringing blessing and…
• Osame — A cherished Japanese name signifying blessing, grace, clear inlet, bringing ble…
• Osamu — Discipline, study.
• Oscar — Deer lover; gentle champion.
• Oshiu — Oshiu carries the meaning of intention, eaves, reflecting cherished Japanese cu…
• Oshizu — Oshizu carries the meaning of intention, haven, reflecting cherished Japanese c…
• Oskar — Spear of the gods.
• Oswald — Divine power; God's ruler.
• Otama — Jewel.
• Otis — Wealthy.
• Otohime — A cherished Japanese name signifying blessing, grace, clear inlet, bringing ble…
• Otoyo — A cherished Japanese name signifying generation, eternal era, bringing blessing…
• Otsuyo — A cherished Japanese name signifying generation, eternal era, bringing blessing…
• Ottilie — Prosperous in battle.
• Otto — Wealth and prosperity.
• Ottoline — Prosperous; fortunate.
• Owen — Young warrior; noble.
• Oyu — Oyu carries the meaning of abundant, reflecting cherished Japanese cultural ide…
• Oyuki — A cherished Japanese name signifying sturdy tree, chronicle, radiant hope, brin…