60 Boy Names That Start with O, From Timeless Classics to Rare Finds

Pronunciation: AH-lih-ver

Famous: Oliver Twist (Charles Dickens)

Pairing: Oliver James

Why: Oliver has held the top of the charts for years without losing its warmth or charm. It sounds friendly and classic at once, the kind of name that fits a toddler and a CEO equally well.

Pronunciation: OH-in

Famous: Owen Wilson, actor

Pairing: Owen Michael

Why: Owen is short, easy to spell, and has real Welsh roots behind its modern popularity. It feels approachable without ever going bland.

Pronunciation: AHS-kar

Famous: Oscar Wilde, writer

Pairing: Oscar Bennett

Why: Oscar has a playful, storybook quality that still reads as fully grown-up. It’s been a European staple for generations and is now climbing fast in the US too.

Pronunciation: oh-RY-en

Famous: Orion, the hunter constellation

Pairing: Orion Alexander

Why: Orion pulls straight from the night sky and Greek mythology, giving it built-in drama and scale. It suits a bold kid without tipping into overly trendy territory.

Pronunciation: OH-tis

Famous: Otis Redding, musician

Pairing: Otis Ray

Why: Otis has a vintage soul-music charm that’s made it a favorite again with parents chasing something old-fashioned but not stuffy. It’s friendly, a little quirky, and easy to shout across a yard.

Pronunciation: OH-mar

Famous: Omar Sharif, actor

Pairing: Omar Elias

Why: Omar carries deep historical weight as the name of one of Islam’s most significant early leaders, and it sounds equally strong today. It’s short, clean, and works well across cultures.

Pronunciation: oh-KON-kwoh

Famous: Okonkwo, protagonist of Things Fall Apart

Pairing: Okonkwo David

Why: Okonkwo is a strong, literary Igbo name tied to one of the most widely read novels in African literature. It gives a son a name with real narrative weight and cultural pride behind it.

Pronunciation: OH-din

Famous: Odin, chief god in Norse mythology

Pairing: Odin Wolf

Why: Odin brings serious mythological power, borrowed from the king of the Norse gods himself. It’s become a favorite for parents who want something bold and a little fierce.

Pronunciation: OR-sin

Famous: Orson Welles, filmmaker

Pairing: Orson Fitzgerald

Why: Orson has a distinguished, old-Hollywood ring to it thanks to Orson Welles, but the “bear cub” meaning keeps it warm and a little cuddly. It suits a family that likes vintage names with a story attached.

Pronunciation: AH-zee

Famous: Ozzy Osbourne, musician

Pairing: Ozzy Dean

Why: Ozzy is fun, energetic, and has enough rock-and-roll edge to feel distinct from softer O names. It works equally well as a nickname or a name in its own right.

Pronunciation: OH-lin

Famous: Modern rising name

Pairing: Olin Peter

Why: Olin feels like a fresher cousin to Owen and Oliver, with the same soft, open sound but far fewer kids sharing it at school. It’s a great pick for parents who love the classics but want a little more breathing room.

Pronunciation: or-LAN-doh

Famous: Orlando Bloom, actor

Pairing: Orlando James

Why: Orlando has a romantic, Shakespearean quality dating back to As You Like It, plus modern recognition thanks to Orlando Bloom. It’s a name with real presence that still has plenty of nickname options.

Pronunciation: OHK-lee

Famous: Modern rising name

Pairing: Oakley Grant

Why: Oakley pulls double duty as a nature name and a surname-style pick, and it’s climbed fast in popularity over the last decade. It has a rugged, outdoorsy feel without being hard to spell or say.

Pronunciation: oh-ZY-us

Famous: Biblical variant of Uzziah

Pairing: Ozias Matthew

Why: Ozias has the strong biblical backbone of Uzziah but a softer, more distinctive sound thanks to the O opening. It’s an unusual choice that still feels grounded and meaningful.

Pronunciation: AH-toh

Famous: Otto von Bismarck, German statesman

Pairing: Otto Frederick

Why: Otto is a palindrome with old European royal roots, giving it a quirky, memorable edge. It sounds sturdy and a little old-world, in the best way.

Pronunciation: AH-lee

Famous: Modern rising name

Pairing: Ollie Beck

Why: Ollie has become popular as a standalone name, not just a nickname for Oliver, thanks to its cheerful, easygoing sound. It’s friendly and low-key without feeling plain.

Pronunciation: AHZ-wald

Famous: Saint Oswald of Northumbria

Pairing: Oswald Henry

Why: Oswald has an old-fashioned charm that’s quietly making a comeback among parents drawn to Victorian-era names. It shortens naturally to Ozzy while still standing strong on formal documents.

Pronunciation: oh-MAH-ree

Famous: Modern rising name

Pairing: Omari Jace

Why: Omari takes the strength of Omar and gives it a smoother, more musical ending. It’s grown steadily as a favorite across the US for its warm sound and strong meaning.

Pronunciation: oh-NEEL

Famous: Shaquille O’Neal, athlete (surname variant)

Pairing: Oneil Marcus

Why: Oneil takes a familiar Irish surname and turns it into a distinctive first name choice. It has an athletic, confident energy thanks to its most famous bearer.

Pronunciation: OHKS

Famous: Modern rising name

Pairing: Oakes Rivers

Why: Oakes has taken off alongside Oakley as parents look for sturdy, nature-rooted surname names for boys. It’s short, easy to spell, and feels grounded without being plain.

Pronunciation: AH-niks

Famous: Onyx, the gemstone

Pairing: Onyx Reign

Why: Onyx has a sleek, modern sound that pulls from the deep black stone it’s named for. It fits right in with the current wave of gemstone and mineral names for boys.

Pronunciation: OH-zark

Famous: The Ozark Mountains, US

Pairing: Ozark Lane

Why: Ozark is a bold, place-inspired pick for parents who want something distinctly American and rugged. It stands out in any classroom without being difficult to say.

Pronunciation: AH-sten

Famous: Modern rising name

Pairing: Osten Wilder

Why: Osten offers a fresh spin on Austin and Boston-style names, with a crisp, modern edge. It’s uncommon enough to feel unique while still sounding instantly familiar.

Pronunciation: AH-zee

Famous: Ozzie Smith, baseball Hall of Famer

Pairing: Ozzie Frank

Why: Ozzie has an upbeat, retro-cool energy that’s landed it back on trending lists. It works well solo or as a nickname for something longer like Oswald or Osborn.

Pronunciation: OH-rin

Famous: Saint Oran of Iona

Pairing: Oran Wesley

Why: Oran is short, soft, and easy to say, with roots that trace back to an early Irish saint. It fits neatly among trending one-syllable boy names without feeling overused.

Pronunciation: OH-vee

Famous: Alex Ovechkin, nicknamed “Ovie,” hockey star

Pairing: Ovie Marshall

Why: Ovie has a playful, athletic energy borrowed from hockey star Alex Ovechkin’s famous nickname. It’s short, upbeat, and stands apart from the more traditional O names on this list.

Pronunciation: oh-buh-DY-uh

Famous: Obadiah, minor prophet in the Old Testament

Pairing: Obadiah Grace

Why: Obadiah has a stately, old-fashioned rhythm and a straightforward meaning that’s made it popular again among parents who love biblical names with real substance. It shortens easily to Obie for everyday use.

Pronunciation: OTH-nee-el

Famous: Othniel, first judge of Israel

Pairing: Othniel James

Why: Othniel is a rare find for parents wanting a biblical name with real depth but almost no chance of overlap at school. The “lion of God” meaning gives it quiet strength.

Pronunciation: oh-HOH-lee-ab

Famous: Oholiab, craftsman of the biblical tabernacle

Pairing: Oholiab Reuben

Why: Oholiab is about as rare as biblical names get, belonging to the skilled craftsman who helped build the tabernacle in Exodus. It’s a striking choice for parents who want a name almost no one else has heard.

Pronunciation: OM-ree

Famous: Omri, king of Israel

Pairing: Omri Asher

Why: Omri is short and punchy, a name belonging to a king of Israel in the Old Testament. It feels modern in sound despite its ancient roots.

Pronunciation: OH-nan

Famous: Biblical figure in Genesis

Pairing: Onan Micah

Why: Onan is a lesser-known biblical name that leans on its strong meaning rather than a famous namesake. It suits parents drawn to obscure scripture names with a clean, simple sound.

Pronunciation: oh-ZYE-el

Famous: Uzziel, Levite clan leader (variant spelling)

Pairing: Oziel Marcos

Why: Oziel offers a softer, more melodic take on the biblical Uzziel while keeping its powerful meaning intact. It’s popular in Spanish-speaking communities and works beautifully across cultures.

Pronunciation: oh-loo-wah-SHAY-oon

Famous: Common Yoruba given name in Nigeria

Pairing: Oluwaseun David

Why: Oluwaseun is a deeply meaningful Yoruba name expressing gratitude, often shortened to Seun for everyday use. It brings rich West African heritage and faith into a single name.

Pronunciation: oh-STAHP

Famous: Ostap Bulba, character in Taras Bulba

Pairing: Ostap Nikolai

Why: Ostap carries a strong, folkloric Ukrainian identity and a grounded meaning to match. It stands out as a distinctive pick with genuine Eastern European roots.

Pronunciation: oh-DYE-er

Famous: Common Brazilian given name

Pairing: Odair Miguel

Why: Odair has a smooth, musical quality typical of Brazilian Portuguese names. It feels warm and unexpected for English-speaking families looking for something different.

Pronunciation: oh-LEG

Famous: Oleg of Novgorod, medieval Slavic ruler

Pairing: Oleg Anton

Why: Oleg traces back to Norse roots carried into Russia by early Varangian rulers, giving it a fascinating cross-cultural history. It’s strong, short, and easy to pronounce.

Pronunciation: oh-ZAHN

Famous: Common modern Turkish given name

Pairing: Ozan Kaan

Why: Ozan honors the tradition of the traveling poet-singer in Turkish folk culture, giving it an artistic, storytelling edge. It’s smooth to say and carries real cultural depth.

Pronunciation: OHS-kar

Famous: King Oscar II of Sweden

Pairing: Oskar Linus

Why: Oskar is the Scandinavian spelling of Oscar, favored across Sweden, Norway, and Germany for its crisp, royal history. It gives a familiar sound a subtly different, distinguished look.

Pronunciation: oo-MAR

Famous: Common name across Senegal and Mali

Pairing: Oumar Ibrahim

Why: Oumar is the West African spelling of Omar, widely used across Francophone Africa. It keeps the same strong meaning while offering a distinct regional flavor.

Pronunciation: OR-well

Famous: George Orwell, author

Pairing: Orwell Sage

Why: Orwell mixes a literary nod to George Orwell with a genuine nature-based meaning tied to rivers and streams. It’s a thoughtful pick for parents who love books and the outdoors equally.

Pronunciation: AH-spray

Famous: The osprey, fishing hawk

Pairing: Osprey Finn

Why: Osprey borrows straight from the striking fishing hawk, giving it a wild, soaring quality few other names can match. It suits a family that wants a true nature name with real presence.

Pronunciation: OHK-lund

Famous: Oakland, California

Pairing: Oakland Reed

Why: Oakland works as both a nature name and a place name, calling to mind sturdy oak groves and a well-known American city. It has a grounded, dependable feel.

Pronunciation: OH-pul

Famous: The opal gemstone

Pairing: Opal Rhys

Why: Opal has traditionally leaned girl-name, but it’s increasingly used for boys among parents drawn to gemstone names without gendered baggage. Its soft, shimmering meaning gives it real character.

Pronunciation: OR-kid

Famous: The orchid flower

Pairing: Orchid Sol

Why: Orchid is a bold, unconventional botanical choice for a boy, standing out for its rarity and striking sound. It suits parents who want a name that’s genuinely never heard in a classroom roll call.

Pronunciation: OH-shun

Famous: Frank Ocean, musician

Pairing: Ocean Wilder

Why: Ocean is expansive and calming, a name that instantly conjures open water and endless horizons. It’s become a favorite among parents drawn to big, atmospheric nature names.

Pronunciation: AHZ

Famous: The Wizard of Oz

Pairing: Oz Nathaniel

Why: Oz is about as short as names get, punchy and instantly memorable thanks to its Hebrew meaning and pop-culture ties. It works well alone or as a nickname for something longer.

Pronunciation: OHM

Famous: Om, sacred syllable in Hindu tradition

Pairing: Om Vikram

Why: Om carries deep spiritual weight as the sacred sound chanted in Hindu and Buddhist meditation. It’s rare in its simplicity, just two letters holding centuries of meaning.

Pronunciation: OH-dis

Famous: Regional Southern US variant name

Pairing: Odis Wayne

Why: Odis has a folksy, Southern charm as a variant spelling of Otis. It’s short, warm, and carries a homegrown quality that feels timeless.

Pronunciation: oh-DELL

Famous: Odell Beckham Jr., football player

Pairing: Odell Marcus

Why: Odell has real athletic star power thanks to Odell Beckham Jr., giving it an energetic, confident feel. It’s short, smooth, and easy to say across generations.

Pronunciation: OR-en

Famous: Modern rising name

Pairing: Oren Micah

Why: Oren is quiet and grounded, drawing on the pine tree for a calm, natural feel. It’s short enough to be practical but still distinct from more common O names.

Pronunciation: OH-bee

Famous: Modern rising name

Pairing: Obie Frank

Why: Obie stands well on its own as a cheerful, upbeat nickname-style name, even without the longer Obadiah behind it. It’s easy for little kids to say and sticks in memory fast.

Pronunciation: OH-jay

Famous: Modern rising name

Pairing: Ojay Ellis

Why: Ojay has a breezy, contemporary feel, built from initials into a full name the way Jaylen or Kayden once were. It’s easygoing and simple to spell out loud.

Pronunciation: OH-nee

Famous: Common short-form Yoruba name

Pairing: Oni Kayode

Why: Oni is short and rhythmic, often used as a standalone name or the root of longer Yoruba names. It has a warm, welcoming sound that travels easily across languages.

Pronunciation: AHZ-rik

Famous: Osric, courtier in Shakespeare’s Hamlet

Pairing: Osric Bennett

Why: Osric is a genuinely rare pick with real Shakespearean pedigree and an authoritative meaning. It suits a family who wants a literary name that’s virtually guaranteed to be one of a kind.

Pronunciation: AH-toh-leen

Famous: Lady Ottoline Morrell, historical figure

Pairing: Ottoline Rhys

Why: Ottoline is unusual and eccentric, more commonly seen as a middle name but striking as a full first name for a distinctive family. It carries the same “wealth” root as Otto with a longer, more ornate shape.

Pronunciation: OKS-ton

Famous: Modern rising name

Pairing: Oxton Rhett

Why: Oxton is a rare English place name turned first name, with a rugged, farm-town character. It fits well among the current wave of surname-style O picks without being a copy of Oakley or Oakes.

Pronunciation: OHL-win

Famous: Olwen, figure in Welsh mythology

Pairing: Olwyn Trystan

Why: Olwyn draws from Welsh mythology and has a soft, lyrical quality that’s rarely heard outside Wales. It’s a genuinely distinctive option with deep folklore roots.

Pronunciation: or-ES-teez

Famous: Orestes, figure in Greek mythology

Pairing: Orestes Miguel

Why: Orestes carries serious mythological weight as a central figure in Greek tragedy, giving it a dramatic, literary presence. It’s a bold choice for parents unafraid of a name with real history.

Pronunciation: oh-TOH-toh

Famous: Common Japanese word used affectionately as a name

Pairing: Ototo Kenji

Why: Ototo has a sweet, unusual origin as the Japanese word for younger brother, making it a heartfelt pick for a second son. It’s rare in Western baby name lists but rich with meaning.

Pronunciation: oz-ee-MAN-dee-us

Famous: Ozymandias, subject of the Percy Shelley poem

Pairing: Ozimandias Kane

Why: Ozimandias is a dramatic, larger-than-life choice pulled from one of the most famous poems in English literature. It’s not for the faint of heart, but it’s unforgettable.