Baby boy names that start with O exude a refined yet approachable charm. Perennial favorites like Oliver ("olive tree") and Owen ("young warrior") blend vintage appeal with modern popularity, while distinctive choices such as Orlando ("famous land"), Otto ("wealth"), and Otis ("wealthy") offer quirky sophistication.

O names often pack a punch in just a few syllables—think Oscar ("friend of deer"), Orson ("bear cub"), or Omar ("flourishing"). They also carry global flair, from the Irish Oisin ("little deer") to the Hebrew Oren ("pine tree"). Whether you prefer the classic Oscar, the nature-inspired Oakley, or the regal Orion, O names deliver a polished, memorable option that stands out without straining pronunciation.

Baby Names That Start With O

Original, optimistic, and often overflowing with charm — baby names that begin with O carry a timeless elegance and a touch of the unexpected. From beloved favorites like Olivia to mythological marvels like Orion and rare blooms like Orchid, here are 50 “O” names to inspire your next great name choice.

See All the Names

1. Olivia
Origin: Latin
Meaning: Olive tree
Description: Classic and elegant, Olivia is timeless and graceful with its velvety four syllables that have dominated baby name charts for decades. The name's botanical roots connect it to peace and prosperity (the olive branch as ancient symbol), while its Shakespearean pedigree (from "Twelfth Night") lends literary sophistication. Olivia's perfect balance of popularity and prettiness makes it simultaneously familiar and fresh - the "little black dress" of names that never goes out of style. Its vowel-rich construction (oh-LIV-ee-ah) flows like poetry, with the emphasis on the second syllable giving it gentle rhythm. While traditionally feminine, creative parents are beginning to explore Olivia's gender-neutral potential through nicknames like Ollie or Liv. For families seeking something both beautiful and substantial that will age gracefully from childhood through adulthood, Olivia remains the gold standard - a name that's as lovely on a CEO as it is on a newborn.

2. Oliver
Origin: Latin
Meaning: Olive tree
Description: Popular and charming, Oliver brings warmth and strength with its effortlessly likable English charm. This name's resurgence from Victorian relic to modern favorite speaks to its perfect balance of traditional roots and contemporary appeal. The three crisp syllables (OL-i-ver) create a friendly rhythm, while the "ver" ending gives it gentle sophistication. Oliver's botanical meaning connects it to peace and resilience (the olive tree's symbolism), while its literary associations (from Dickens to "Oliver & Company") add creative cred. What makes Oliver particularly special is its versatility - it's equally suited to a star athlete, a bookish poet, or a tech entrepreneur. The nickname options (Ollie, Liv) allow for personalization as the child grows. For parents seeking something both classic and current, with European flair and organic roots, Oliver stands tall like its namesake tree - sturdy, graceful, and full of life.

3. Ophelia
Origin: Greek
Meaning: Help
Description: Romantic and literary, Ophelia flows with poetic beauty in its four lyrical syllables (oh-FEEL-ya). Immortalized by Shakespeare's tragic heroine in "Hamlet," this name carries profound artistic weight while its melodic sound keeps it wearable. The "ph" spelling adds a touch of Hellenic sophistication, while the floral "elia" ending connects it to nature's beauty. Ophelia's resurgence reflects modern parents' appreciation for vintage names with dark romanticism - it suggests sensitivity, creativity, and depth. While the Shakespearean association gives some pause, many embrace it as a symbol of poetic femininity rather than tragedy. The name's rarity ensures distinction, while its phonetic clarity prevents mispronunciation. For lovers of literature and lyricism seeking a name that's both haunting and beautiful, Ophelia offers Shakespearean grandeur - like a watercolor painting of flowers floating downstream, poignant and perfect.

4. Owen
Origin: Welsh
Meaning: Young warrior
Description: Strong and dependable, Owen carries gentle power in its two compact syllables that belie its ancient Celtic roots. This name's evolution from medieval Welsh royalty (Owain) to modern favorite showcases its timeless appeal. The "ow" beginning gives it warm, approachable energy, while the "en" ending keeps it crisp and clean. Owen's meaning suggests both courage and youthfulness - perfect for a child meant to face life's battles with integrity. Its popularity across English-speaking countries speaks to its universal wearability, while its consistent ranking prevents it from feeling trendy. What makes Owen particularly appealing is its balance of strength and softness - it's substantial without being harsh, friendly without being weak. For parents seeking something traditional but not stuffy, with Celtic charm and quiet confidence, Owen stands firm - a name that's both shield and shelter, ready for adventure yet always steady.

5. Oakley
Origin: English
Meaning: Oak clearing
Description: Nature-inspired and modern, Oakley is fresh and earthy with its combination of arboreal strength and surname charm. The two-syllable structure (OAK-lee) creates a punchy rhythm, while the "ley" ending gives it friendly accessibility. Oakley's meaning connects to the mighty oak tree - symbol of endurance and wisdom - while its "clearing" suffix suggests openness and possibility. Originally masculine, Oakley has become truly gender-neutral, appealing to parents seeking nature names that work equally well for all children. The name's athletic associations (through the eyewear brand) add contemporary cool, while its organic roots keep it grounded. For families drawn to names that blend natural beauty with modern edge, Oakley offers the perfect balance - like sunlight filtering through ancient trees, both timeless and full of new energy.

6. Orion
Origin: Greek
Meaning: Hunter
Description: Celestial and bold, Orion shines with stellar strength as one of the most recognizable constellations in the night sky. This three-syllable name (oh-RYE-on) carries mythological weight as the legendary hunter placed among the stars, giving it cosmic grandeur. The strong "rye" center gives it powerful energy, while the celestial connection adds limitless wonder. Orion's rising popularity reflects modern parents' love for astronomical names with masculine energy (though increasingly used for all genders). The name suggests both adventure and guidance - like the constellation that's helped navigators for millennia. Its rarity ensures distinction, while its phonetic simplicity prevents mispronunciation. For stargazing families or those seeking something with epic resonance, Orion offers galactic majesty - a name that's both ancient and forever young, like the stars themselves.

7. Odette
Origin: French
Meaning: Wealth
Description: Elegant and rare, Odette feels vintage and graceful with its delicate French charm. Immortalized by Tchaikovsky's "Swan Lake," this name carries ballet's ethereal beauty in its three lilting syllables (oh-DET). The "ette" suffix gives it feminine refinement, while the initial "O" keeps it luminous. Odette's meaning connects to prosperity and abundance, though its true wealth lies in its artistic and aristocratic associations. After decades of obscurity, this name is ready for revival - familiar enough to be recognized, rare enough to enchant. The nickname potential (Etta, Odie) adds versatility, while its full form maintains sophisticated allure. For parents seeking something with European flair and storybook beauty, Odette offers Swan Princess perfection - a name that glides effortlessly between strength and grace.

8. Oscar
Origin: Irish
Meaning: Friend of deer
Description: Classic and noble, Oscar brings strength and sweetness in equal measure with its dual Celtic roots (from os "deer" and cara "friend"). This two-syllable name (OS-ker) has royal pedigree in Norse and Irish history, while its modern vibe keeps it fresh. The hard "k" sound gives it masculine energy, while the animal connection adds gentle nature appeal. Oscar's literary associations (from Wilde to the Sesame Street grouch) showcase its remarkable range, while its consistent popularity proves enduring charm. The name strikes a perfect balance - substantial enough for adulthood, playful enough for childhood. For parents seeking something both traditional and lively, with European heritage and universal appeal, Oscar stands proud - like a stag in the forest, strong yet graceful.

9. Oona
Origin: Irish
Meaning: Lamb
Description: Gentle and soft, Oona is rare and mystical with its ancient Gaelic roots and fairy-tale quality. This single-syllable name (OO-nah) packs quiet power, its double "o" giving it visual and phonetic warmth. Oona's meaning connects to innocence and gentleness (the lamb), while its literary associations (from Joyce to Chaplin's daughter) add creative cred. The name's simplicity makes it globally wearable, while its rarity ensures distinctive charm. What makes Oona particularly magical is its balance of brevity and depth - it's concise yet full of heritage, soft yet memorable. For parents seeking something short but substantial, with Celtic mysticism and quiet beauty, Oona offers lyrical perfection - like the first note of a lullaby, simple yet profoundly moving.

10. Otis
Origin: German
Meaning: Wealth
Description: Vintage and soulful, Otis is charming and grounded with its old-school cool and musical pedigree. This two-syllable name (OH-tis) has blue-collar roots that gained sophistication through icons like Otis Redding, giving it both grit and grace. The name's meaning suggests prosperity, though its true richness lies in its retro-modern vibe - familiar yet fresh, simple yet full of character. Otis' resurgence reflects the trend for grandpa names with substance, while its single-syllable nickname potential (Ote) adds flexibility. For parents seeking something both nostalgic and now, with soulful resonance and easygoing charm, Otis delivers - like a perfectly broken-in leather jacket, better with age.

11. Ocean
Origin: English
Meaning: Sea
Description: Free and fluid, Ocean feels expansive and calming with its elemental power and gender-neutral appeal. This two-syllable nature name (OH-shun) captures the majesty of Earth's waters in a single, flowing word. Ocean's meaning connects to depth, mystery, and constant motion - perfect for a child with boundless potential. While traditionally masculine, its adoption for all genders reflects the fluidity of its namesake. The name's rarity ensures distinctive charm, while its phonetic simplicity prevents confusion. For beach-loving families or those drawn to nature's grandeur, Ocean offers limitless possibility - a name that's both peaceful and powerful, like the horizon where sky meets sea.

12. Octavia
Origin: Latin
Meaning: Eighth
Description: Regal and sophisticated, Octavia stands tall with style and ancient Roman gravitas. This four-syllable name (ok-TAY-vee-ah) belonged to emperors' sisters in classical times, giving it aristocratic elegance. The "octa" prefix connects to the number eight (often symbolizing infinity or balance), while the "via" ending suggests pathways. Octavia's literary and historical associations lend intellectual weight, while its melodic rhythm keeps it feminine and flowing. The nickname options (Tavi, Via) modernize this vintage gem. For parents seeking something with classical grandeur and modern resonance, Octavia offers imperial splendor - a name that's both anchor and sail, rooted yet ready to explore.

13. Ozzy
Origin: English
Meaning: Divine spear
Description: Cool and edgy, Ozzy packs a punch with charm as the lively diminutive of Oswald or Osmond. This two-syllable nickname-turned-standalone (OZ-ee) gained rockstar cred through Ozzy Osbourne, giving it rebellious energy. The double "z" makes it visually and phonetically zippy, while its meaning connects to spiritual protection. Ozzy's playful vibe makes it perfect for a spirited child, while its vintage roots prevent it from feeling trendy. The name strikes a perfect balance - fun but not frivolous, bold but not brash. For music-loving parents or those seeking something short and memorable with personality to spare, Ozzy delivers - like a power chord in name form, simple yet electrifying.

14. Orla
Origin: Irish
Meaning: Golden princess
Description: Bright and bold, Orla sparkles with Celtic magic in its two luminous syllables (OR-lah). This ancient Irish name belonged to multiple medieval queens, giving it regal heritage with approachable charm. Orla's meaning connects to both royalty and radiance (from "ór" meaning gold), making it perfect for a cherished child. The name's simplicity gives it modern appeal, while its Gaelic roots ensure distinctive character. What makes Orla particularly special is its balance of strength and sweetness - it's concise yet full of light, traditional yet fresh. For parents with Irish heritage or those simply drawn to names with golden warmth, Orla offers gilded beauty - like sunlight through autumn leaves, both vibrant and gentle.

15. Omari
Origin: Swahili
Meaning: God is the highest
Description: Spiritual and rhythmic, Omari carries meaning and depth with its uplifting three syllables (oh-MAR-ee). This East African name's religious significance gives it profound resonance, while its melodic flow makes it universally appealing. Omari's popularity in African-American communities reflects its cultural pride and beautiful sound. The name suggests both divine connection and personal aspiration - perfect for a child meant to reach great heights. Its rarity among broader populations ensures distinctive charm, while its phonetic clarity prevents mispronunciation. For families valuing faith and heritage, or those simply seeking something with musicality and strength, Omari offers celestial inspiration - a name that points heavenward while standing firmly on earth.

16. Oriana
Origin: Latin
Meaning: Dawn
Description: Luminous and lyrical, Oriana glows with golden light in its four flowing syllables (or-ee-AH-nah). This name's connection to the rising sun makes it symbolically beautiful - perfect for a new beginning or bright spirit. Oriana's literary pedigree (from medieval romance to modern fiction) adds artistic allure, while its melodic structure keeps it feminine and graceful. The name's rarity ensures distinctive charm, while its vowel-rich construction makes it sing. What makes Oriana particularly magical is its balance of grandeur and approachability - it's elaborate yet wearable, radiant yet gentle. For parents seeking something both celestial and earthly, with poetic beauty and hopeful resonance, Oriana offers morning splendor - like the first rays of sunlight gilding the horizon.

17. Otto
Origin: German
Meaning: Wealth
Description: Vintage and sleek, Otto blends retro with strength in its perfectly balanced two-syllable form (OT-oh). This name's palindrome structure makes it visually and phonetically satisfying, while its Germanic roots give it sturdy charm. Otto's meaning connects to prosperity, though its true richness lies in its old-world elegance and modern minimalism. After decades of obscurity, this name is having a well-deserved revival - familiar enough to be recognized, rare enough to stand out. The double "t" gives it crisp definition, while the vowel ending keeps it warm. For parents seeking something both traditional and trendy, with European sophistication and easygoing charm, Otto delivers - like a vintage car with timeless style and reliable engine.

18. Oaklyn
Origin: American
Meaning: Invented name
Description: Modern and breezy, Oaklyn feels trendy and fresh with its blend of arboreal strength and surname style. This two-syllable invention (OAK-lin) combines the mighty oak tree with the popular "-lyn" suffix, creating a name that's both natural and contemporary. Oaklyn's fluid gender-neutrality reflects current naming trends, while its organic first element keeps it grounded. The name suggests both resilience (the oak) and openness (the "lyn" ending's meadow-like quality). While invented, it follows familiar phonetic patterns, making it accessible despite its novelty. For parents drawn to nature names with modern construction, seeking something distinctive but not strange, Oaklyn offers leafy innovation - like a sapling in an urban park, both fresh and firmly rooted.

19. Odelia
Origin: Hebrew
Meaning: I will praise the Lord
Description: Spiritual and elegant, Odelia is lyrical and rare with its four melodious syllables (oh-DEL-ee-ah) that dance like a sacred hymn. This Hebrew name's profound meaning makes it a beautiful choice for faith-oriented families, while its delicate "delia" suffix gives it floral softness reminiscent of Cordelia or Ophelia. Odelia's vintage charm feels freshly rediscovered rather than dated, offering antique elegance without stuffiness. The name's rarity ensures distinctive beauty - it's familiar enough to be pronounceable yet uncommon enough to enchant. With built-in nicknames (Delia, Lia) and a rhythm that flows like poetry, Odelia is perfect for parents seeking something both reverent and romantic, substantial yet sweet - like stained glass illuminated by morning light.

20. Ozias
Origin: Greek
Meaning: Salvation
Description: Mystical and bold, Ozias feels powerful and unique with its ancient biblical resonance and striking three-syllable structure (oh-ZYE-us). This New Testament name carries spiritual gravitas while its unusual "z" center gives it contemporary edge. Ozias' meaning connects to divine deliverance, making it profoundly meaningful for religious families, though its strong sound appeals beyond faith contexts. The name's rarity makes it extraordinarily distinctive - a heavyweight alternative to Ezra or Josiah that stands out without being difficult. With its blend of antique grandeur and modern snap, Ozias offers timeless strength - like an ancient artifact with surprisingly relevant wisdom, both mysterious and illuminating.

21. Olympia
Origin: Greek
Meaning: From Mount Olympus
Description: Strong and mythic, Olympia is grand and radiant with its four majestic syllables (oh-LIM-pee-ah) evoking the home of Greek gods. This name's athletic associations (through the Olympic Games) lend vibrant energy, while its mythological roots add epic grandeur. Olympia strikes a perfect balance between formidable and feminine - substantial enough for a leader, melodic enough for an artist. The nickname options (Pia, Ollie) modernize its classical weight, while its full form commands respect. For parents seeking something both historically rich and boldly contemporary, Olympia offers divine inspiration - a name that's like a marble temple on a sunlit hill, enduring and glorious.

22. Orrin
Origin: Irish
Meaning: Pale little one
Description: Gentle and soft, Orrin is rare and peaceful with its two soothing syllables (OR-in) that whisper like wind through grass. This Irish variant of Odhran carries Celtic mysticism in compact form, its meaning connecting to the fair-haired or spiritually enlightened. Orrin's simplicity gives it quiet strength - it's substantial without being showy, uncommon without being strange. The double "r" adds subtle texture, while its vowel-rich construction keeps it luminous. For parents seeking something brief but blessed, with Gaelic roots and meditative calm, Orrin offers unassuming beauty - like a smooth stone warmed by the sun, simple yet full of secret history.

23. Osiris
Origin: Egyptian
Meaning: God of the underworld
Description: Mysterious and strong, Osiris holds ancient depth with its three resonant syllables (oh-SYE-ris) echoing from pharaonic times. This mythological name belongs to the Egyptian lord of the afterlife who symbolized resurrection and fertility, giving it profound symbolic weight. Osiris' striking sound makes it unforgettable, while its historical significance adds intellectual intrigue. The name suggests both power and wisdom - perfect for a child meant to navigate life's mysteries with grace. While undeniably bold, its growing use shows modern parents embracing its majestic aura. For mythology-loving families or those seeking something truly distinctive with timeless resonance, Osiris offers underworld grandeur - like hieroglyphs glowing in torchlight, ancient yet vibrantly alive.

24. Odessa
Origin: Greek
Meaning: Long journey
Description: Whimsical and bold, Odessa carries a sense of adventure with its three flowing syllables (oh-DESS-ah) that roll like ocean waves. This place name (from the Ukrainian port city) suggests both wanderlust and homecoming, perfect for global citizens or children of diaspora. Odessa's "essa" ending gives it feminine flair, while its initial "O" keeps it strong and open. The name's literary and cinematic appearances have maintained its romantic appeal without making it common. For parents who see life as an odyssey and want a name that promises discovery, Odessa offers poetic resonance - like a ship's prow cutting through dawn-lit waters, both purposeful and free.

25. Oakes
Origin: English
Meaning: From the oak tree
Description: Grounded and strong, Oakes is earthy and stylish with its single crisp syllable that stands tall like its namesake tree. This surname-turned-first-name carries arboreal strength and aristocratic charm (think of historic estates like Oakes Hall). The "kes" ending gives it contemporary snap, while its botanical meaning connects to endurance and wisdom. Oakes' brevity makes it punchy and memorable, perfect for parents seeking something both natural and urbane. Whether inspired by family roots or love of nature, this name grows beautifully - like an oak sapling in an urban park, equally at home in wilderness or cityscape.

26. Odelina
Origin: German
Meaning: Little wealthy one
Description: Vintage and sweet, Odelina sparkles with charm in its four delicate syllables (oh-deh-LEE-nah) that shimmer like antique lace. This Germanic elaboration of Odette or Ottilie carries old-world elegance with its "lina" suffix (meaning "little"), creating a name that's both grand and endearing. Odelina's meaning suggests prosperity, though its true richness lies in its fairy-tale beauty and rarity. The nickname options (Lina, Delia) add versatility, while its full form maintains regal grace. For parents seeking something ornate yet wearable, with European sophistication and storybook magic, Odelina offers gilded charm - like a music box's melody, delicate yet enduring.

27. Orin
Origin: Hebrew
Meaning: Pine tree
Description: Simple and peaceful, Orin blends nature with calm in its two gentle syllables (OR-in). This name's arboreal meaning connects to evergreen resilience and quiet majesty, while its Hebrew roots add spiritual dimension. Orin's vowel-rich construction makes it luminous and fluid, perfect for parents seeking something organic yet uncommon. The name's similarity to Irish Odhran creates cross-cultural appeal, while its simplicity ensures global wearability. For families drawn to names that whisper rather than shout, with natural serenity and subtle strength, Orin offers woodland tranquility - like sunlight filtering through pine boughs, soft yet enduring.

28. Onyx
Origin: Greek
Meaning: Black gemstone
Description: Bold and sleek, Onyx stands out with dark beauty in its two striking syllables (ON-iks). This mineral name carries the mystique of its glossy black stone - protective in folklore, striking in jewelry. Onyx's "x" ending gives it modern edge, while its ancient use as a talisman adds mystical weight. The name's gender-neutral appeal and rarity make it extraordinarily distinctive - a jewel among more common gem names. For parents seeking something both strong and polished, with geological wonder and minimalist chic, Onyx offers lapidary perfection - like a cabochon ring, smooth yet full of hidden depth.

29. Olive
Origin: English
Meaning: Olive tree
Description: Soft and green, Olive feels pure and grounded with its two gentle syllables (OL-iv) that embody peaceful vitality. This botanical name's symbolism (peace, wisdom, and victory in ancient cultures) gives it profound resonance, while its vintage charm feels freshly revived. Olive's popularity reflects modern parents' love for nature names with substance - it's sweet but not saccharine, traditional but not tired. The name's literary connections (from Dickens to modern novels) add creative cred, while its vowel-rich sound keeps it luminous. For families seeking something both organic and timeless, Olive offers arboreal grace - like gnarled silver branches bearing fruit, ancient yet ever-renewing.

30. Oslo
Origin: Scandinavian
Meaning: From the meadow
Description: Cool and global, Oslo feels fresh and modern as the cosmopolitan capital of Norway repurposed into a given name. This two-syllable place name (OS-loh) carries Scandinavian sleekness with its clean lines and open vowel ending. Oslo's meaning connects to pastoral serenity, while its urban namesake suggests sophistication and design-forward thinking. The name's rarity ensures distinctive appeal, while its phonetic simplicity makes it globally wearable. For parents drawn to geographical names with Nordic flair, or those seeking something both grounded and urbane, Oslo offers metropolitan charm - like a minimalist fjord-side cabin, where nature and modernity meet in perfect harmony.

31. Odile
Origin: French
Meaning: Fortunate, prosperous
Description: Elegant and rare, Odile is rich with style in its three graceful syllables (oh-DEEL). This French name's most famous bearer - the dark swan from "Swan Lake" - gives it ballet's dramatic beauty, while its meaning suggests blessing and abundance. Odile's "dile" ending creates delicate rhythm, while its initial "O" keeps it luminous. After decades overshadowed by Odette, this name is ready for rediscovery - familiar enough to be recognized, rare enough to enchant. For parents seeking something with Parisian sophistication and artistic resonance, Odile offers noir elegance - like a black feather on fresh snow, striking and sublime.

32. Olivier
Origin: French
Meaning: Olive tree
Description: Romantic and polished, Olivier adds a touch of Parisian class to the classic Oliver with its elongated four syllables (oh-liv-ee-AY). This French form carries Gallic charm and culinary prestige (through Julia Child's co-author), while its botanical meaning connects to peace and resilience. Olivier's fluid pronunciation and accent mark give it continental flair, perfect for cosmopolitan families. The name strikes a balance between familiarity and distinction - close enough to Oliver for ease, different enough to stand apart. For parents seeking something both traditional and refined, with European sophistication and organic roots, Olivier offers je ne sais quoi - like a Provençal olive grove, timeless and fragrant.

33. Osman
Origin: Arabic
Meaning: Pure, tender
Description: Spiritual and noble, Osman carries quiet strength in its two solid syllables (OS-mahn). This name's historical weight (borne by Ottoman sultans) gives it regal resonance, while its meaning suggests both moral clarity and gentle compassion. Osman's "man" ending grounds it in masculinity, while its initial "Os" connects to ancient wisdom traditions. The name's popularity across Muslim cultures ensures rich heritage, while its rarity in the West offers distinctive appeal. For families valuing names with cultural depth and virtuous meaning, Osman offers dignified beauty - like a centuries-old manuscript, weathered yet full of enduring truth.

34. Ori
Origin: Hebrew
Meaning: My light
Description: Bright and concise, Ori is gentle and radiant with its two luminous syllables (OH-ree). This Hebrew name's profound simplicity makes it globally wearable, while its meaning connects to divine illumination and personal brilliance. Ori's vowel-rich construction lets it shine, while its brevity gives it quiet power. The name's popularity in Israel ensures authentic roots, while its rarity elsewhere offers distinctive charm. For parents seeking something both brief and blessed, with spiritual light and minimalist beauty, Ori offers radiant simplicity - like a candle flame in darkness, small yet infinitely meaningful.

35. Oriana-Rose
Origin: Latin-English
Meaning: Dawn + flower
Description: Romantic and soft, Oriana-Rose glows with poetic charm in its five lyrical syllables (or-ee-AH-nah ROZE). This hyphenated combination marries celestial beauty (Oriana meaning "dawn") with floral delicacy, creating a name that blossoms with feminine grace. The rhythm flows from grandeur to simplicity, like sunrise illuminating petals. While elaborate, its familiar components ensure wearability, with nickname options (Ana, Rosie) providing flexibility. For parents drawn to compound names that blend ethereal and earthly beauty, Oriana-Rose offers garden magic - like dew-kissed roses at first light, fleeting yet unforgettable.

36. Odhran
Origin: Irish
Meaning: Little pale green one
Description: Celtic and earthy, Odhran feels deeply rooted with its three guttural syllables (OH-ran) that whisper of emerald hills. This ancient Irish name belongs to multiple saints, giving it spiritual heritage, while its meaning connects to Ireland's verdant landscape. Odhran's uncommon spelling ensures distinctive charm, while its phonetic pronunciation makes it accessible. The name suggests both sanctity and natural vitality - perfect for families honoring Gaelic roots or seeking something with organic spirituality. For parents drawn to names that feel moss-covered and mystical, Odhran offers emerald enchantment - like a standing stone in a misty glen, ancient yet ever-present.

37. Oswin
Origin: English
Meaning: God's friend
Description: Kind and rare, Oswin blends sweetness with spirit in its two sturdy syllables (OZ-win). This Anglo-Saxon name carries medieval charm with its "god's friend" meaning suggesting both devotion and approachability. The strong "win" ending gives it victorious energy, while its initial "Os" root connects to ancient wisdom. Oswin's rarity makes it a hidden gem - familiar enough in construction yet wonderfully distinctive. Perfect for parents seeking something traditional but not tired, with gentle strength and old-world warmth. The nickname potential (Oz, Winnie) adds playful flexibility to this noble name that feels like a handcrafted wooden toy - simple, enduring, and full of quiet character.

38. Ottilie
Origin: German
Meaning: Prosperous in battle
Description: Delicate and vintage, Ottilie feels regal and refined with its four lilting syllables (oh-TIL-ee-ah). This Germanic name's surprising meaning ("prosperous in battle") contrasts beautifully with its frilly, feminine sound. The double "t" gives it crisp definition, while the "lie" ending floats like a sigh. After a century in obscurity, Ottilie is having a well-deserved revival, appealing to parents who adore antique names with spunk. Its literary connections (from Dickens to modern novels) add intellectual charm. For those seeking something both ornate and substantial, with European sophistication and hidden fierceness, Ottilie offers gilded elegance - like a porcelain teacup that's survived generations, delicate yet surprisingly durable.

39. Olyssa
Origin: Invented
Meaning: Modern variation of Alyssa
Description: Creative and light, Olyssa is fresh and melodic with its three sunny syllables (oh-LISS-ah). This contemporary twist on Alyssa replaces the initial "A" with an "O," creating luminous openness while maintaining familiar rhythm. The double "s" gives it whisper-soft energy, while the "lyssa" suffix connects to floral names like Melissa. Olyssa's invented nature makes it perfect for parents seeking something recognizable yet distinctive - a name that's like a familiar song played in a new key. Its vowel-rich construction keeps it bright and buoyant, ideal for a cheerful spirit. For families drawn to modern names with organic flow, Olyssa offers inventive charm - like sunlight sparkling on water, playful and ever-changing.

40. Odelina-Grace
Origin: Hebrew-English
Meaning: Wealth + grace
Description: Double-barreled and elegant, Odelina-Grace sparkles with calm beauty across its six harmonious syllables (oh-deh-LEE-nah GRAYSS). This hyphenated pairing marries Germanic vintage charm ("little wealthy one") with timeless virtue ("grace"), creating a name that's both ornate and grounded. The rhythm flows from elaborate to simple, like an intricate lace collar on a linen dress. While substantial, its familiar components ensure wearability, with multiple nickname options (Lina, Gracie, Delia). Perfect for parents who appreciate compound names that blend heritage and hope, Odelina-Grace offers lyrical sophistication - like a heirloom quilt stitched with love, both practical and beautiful.

41. Ozara
Origin: Hebrew
Meaning: Treasure
Description: Lush and rare, Ozara glows with richness in its three exotic syllables (oh-ZAR-ah). This Hebrew name's precious meaning makes it profoundly special, suggesting both material and spiritual wealth. The strong "z" center gives it contemporary edge, while the open vowels keep it luminous. Ozara's rarity ensures jewel-like distinction - it's uncommon without being obscure, striking without being difficult. The name's biblical roots (as a variant of Ozrah) add depth, while its modern sound fits current tastes. For parents seeking something both meaningful and melodious, with ancient roots and sparkling presence, Ozara offers gilded beauty - like sunlight striking gold, sudden and breathtaking.

42. Orlando
Origin: Italian
Meaning: Famous throughout the land
Description: Bold and romantic, Orlando has theatrical charm with its four dashing syllables (or-LAN-doh). This Italianate form of Roland carries Shakespearean prestige (from "As You Like It") and literary weight (Virginia Woolf's groundbreaking novel). The name's meaning suggests destined greatness, while its melodic flow gives it irresistible appeal. Orlando's "ando" ending adds Mediterranean warmth, perfect for cosmopolitan families. While traditionally masculine, its floral adjacent sound and unisex nickname (Lando) create gender-fluid potential. For parents seeking something both artistic and adventurous, with Old World grandeur and modern vitality, Orlando offers stage-worthy splendor - like a velvet curtain rising on endless possibility.

43. Orchid
Origin: Greek
Meaning: Flower
Description: Exotic and graceful, Orchid blooms with beauty in its two delicate syllables (OR-kid). This botanical name carries the mystique of its rare, intricate blossoms - symbols of luxury and refinement in many cultures. The hard "ch" sound gives it unexpected edge, while its floral essence keeps it feminine and soft. Orchid's rarity makes it extraordinarily distinctive - a sophisticated alternative to Rose or Lily that's both recognizable and surprising. For nature-loving parents seeking something both elegant and unusual, with greenhouse delicacy and wild resilience, Orchid offers cultivated charm - like a tropical bloom in a winter garden, improbable yet magnificent.

44. Omira
Origin: Hebrew
Meaning: She speaks
Description: Strong and lyrical, Omira feels mysterious and wise with its three melodic syllables (oh-MEER-ah). This Hebrew name's powerful meaning ("she speaks") makes it perfect for a future storyteller or leader, suggesting eloquence and conviction. The "mira" suffix connects to wonder (from Latin "mirare"), while its initial "O" gives it open, luminous quality. Omira's rarity ensures distinctive beauty - it's accessible yet uncommon, substantial yet flowing. The name's biblical roots (as a variant of Omri) add depth without heaviness. For parents seeking something both meaningful and musical, with feminine power and quiet intensity, Omira offers vocal beauty - like an ancient incantation rediscovered, full of forgotten wisdom.

45. Oak
Origin: English
Meaning: Tree name
Description: Minimal and solid, Oak is grounded and bold in its single, unshakable syllable. This nature name distills the mighty oak's essence - symbol of endurance, wisdom, and silent strength - into its purest form. Oak's brevity gives it contemporary edge, while its organic roots keep it timeless. The name's rising popularity reflects modern parents' love for sturdy, single-syllable names with natural significance. Perfect for those seeking something both elemental and innovative, that ages seamlessly from childhood through adulthood. Like its namesake tree, Oak stands strong yet adaptable - equally at home in forest or cityscape, quietly impressive in any setting.

46. Oryn
Origin: American
Meaning: Invented variation
Description: Modern and short, Oryn is fresh and cool with its two crisp syllables (OR-in). Likely evolving from names like Oren or Orrin, this invented variant has a sleek, gender-neutral appeal perfect for contemporary tastes. The "ryn" ending gives it subtle edge, while its open vowel beginning keeps it approachable. Oryn's blank-slate quality allows complete personalization - it carries no baggage, only possibility. The name's phonetic simplicity ensures easy wearability, while its rarity guarantees distinction. For parents seeking something brief and memorable with a tech-savvy vibe, Oryn offers minimalist innovation - like a sleek new app with intuitive design, simple yet full of potential.

47. Oran
Origin: Hebrew
Meaning: Light, song
Description: Poetic and pure, Oran blends meaning with melody in its two luminous syllables (OH-ran). This name's dual significance ("light" in Hebrew, "song" in Gaelic) gives it multicultural depth and artistic resonance. Oran's vowel-rich construction makes it shine, while its consonant anchor keeps it grounded. The name's rarity ensures distinctive charm, while its phonetic clarity prevents mispronunciation. Perfect for musically-inclined families or those seeking something both spiritual and joyful. Like dawn's first light or a folk tune floating through morning air, Oran offers simple beauty that lingers in memory - brief yet infinitely evocative.

48. Ocie
Origin: American
Meaning: From the ocean
Description: Vintage and gentle, Ocie is soft and rare with its two whisper-quiet syllables (OH-see). This antique nickname-turned-standalone name carries early 20th century charm, likely derived from Oceanus or similar. Ocie's open vowel sounds create breezy lightness, perfect for a free-spirited child. The name's obscurity makes it extraordinarily distinctive - familiar in sound yet wonderfully unexpected. Its maritime connection adds organic appeal, suggesting both depth and fluidity. For parents seeking something brief and sweet with antique flavor and natural calm, Ocie offers nostalgic charm - like a seashell found in a grandmother's jewelry box, small yet full of secret history.

49. Oziel
Origin: Hebrew
Meaning: God is my strength
Description: Spiritual and bold, Oziel radiates resilience in its three powerful syllables (oh-ZYE-el). This biblical name (borne by a minor prophet) carries divine fortitude in its meaning, while its "ziel" ending (Dutch for "soul") adds poetic dimension. The strong "z" center gives it contemporary edge, while its ancient roots provide profound weight. Oziel's rarity ensures distinctive impact - it's substantial without being cumbersome, uncommon without being strange. Perfect for faith-oriented families or those simply seeking a name with inherent power and uncommon beauty. Like an ancient talisman rediscovered, Oziel offers sacred strength - protection and promise forged into sound.

50. Otillia
Origin: German
Meaning: Prosperous in battle
Description: Whimsical and vintage, Otillia brings both grace and strength with its four ornate syllables (oh-TIL-ee-ah). This elaborate form of Ottilie adds frilly "ia" flourish to its Germanic roots, creating a name that's both formidable and feminine. Otillia's surprising meaning ("prosperous in battle") contrasts delightfully with its delicate sound - like lace over armor. The name's rarity makes it extraordinarily distinctive - a hidden gem for parents seeking something antique yet lively. With nickname options (Tilly, Lia) and rhythmic flow, Otillia offers gilded charm - like a music box ballerina that unexpectedly reveals a steel spring at its core, both dainty and determined.