boy names start with o: Get ideas and inspiration for awesome baby boy names

Baby boy names starting with the letter O have an optimistic, open-minded feel. Popular options like Owen, Oliver, Oscar and Odin carry a creative spirit, while choices like Orion, Otis and Oakley give O names for boys a natural bent. Biblical O names like Obadiah and Omar add vintage flair. Certain endings that start with O also work well for names, like “-ton” in Easton and Weston, or “-lan” like in Rowan. Names beginning with O make versatile first or middle names. Their melodic vowel sound blends nicely with other names. Whimsical word names like Onyx are a modern way to continue the O name tradition for boys.

Oliver: Oliver means "olive tree." It is thought to signify peace, wisdom, fertility, and fruitfulness. The olive tree is seen as a symbol of abundance and prosperity in many cultures. The name has been popular for centuries.

Oscar: Oscar means "divine spear" or "deer lover." It is derived from Gaelic elements. In Irish legend, Oscar was a warrior who was the son of Ossian. The name is associated with bravery and skill in battle. It also has a connection to the natural world through its "deer" meaning.

Owen: Owen means "young warrior" or "well-born." It has Welsh roots as a variant of Owain. In Welsh legend, Owen was a courageous hero. The name has a bold, valiant feel while also feeling aristocratic with its "well-born" connections. It's a name associated with strength and leadership.

Orion: Orion comes from Greek mythology, derived from the name of a mighty hunter known for his good looks and skill. It invokes images of the prominent constellation, which takes the shape of a hunter with a bow and arrow in the night sky. The name Orion has a mystical yet powerful aura.

Olivier: Olivier is the French form of Oliver, meaning "olive tree." Olives represent peace, fertility and longevity. In use since the Middle Ages, Olivier sounds cosmopolitan and sophisticated. The name is associated with wisdom, nobility and longevity.

Otis: Otis has Germanic roots meaning "wealth" or "prosperity." The name carries connotations of abundance and success. It also has connections to the aristocracy, as an early bearer of the name was part of Charlemagne's court. The name Otis conveys prosperity and refinement.

Orson: Orson means "bear cub" or "descendant of the bear." It has English origins related to a French word for bear. Bears represent strength, independence and fearlessness. The name Orson has a rugged, masculine aura that reflects traits like courage, resilience and ferocity.

Oakley: Oakley means "oak clearing" or "oak meadow" from Old English elements. Oak trees represent strength, honor, endurance, wisdom and loyalty. As such, Oakley has an aura of rugged power and integrity. It feels natural, strong and pastoral.

Ocean: Ocean comes from the word meaning the vast sea or body of water. It represents the majestic qualities of the ocean - immense, deep, powerful. As a name, Ocean has a mystical yet strong quality, invoking the vastness and might of the ocean.

Oren: Oren is a Hebrew name meaning "pine tree." Pine trees represent longevity, immortality and peace. As a name, Oren has the aura of a sturdy, steadfast tree - strong and resilient. It also reflects positive qualities like wisdom, clarity and calmness.

Oswald: Oswald is an Old English name meaning "godly power" or "divine power." The strong, bold name Oswald conveys moral strength and leadership. Saint Oswald was an early English king renowned for his courage and faith, adding to the spiritual meaning.

Odin: Odin is a Norse name referring to the most powerful and magical god in Norse mythology, often called the Allfather. He represents wisdom, magic, poetry, and war. The name Odin invokes the mystical qualities of this legendary figure - magical yet mighty.

Omar: Omar is an Arabic name meaning "flourishing, long-lived." It also carries connotations of "eloquent and gifted speaker." Omar was also the name of one of the followers of Muhammad. Altogether, the name Omar has implications of vivacity and intelligence.

Omari: Omari is a Swahili name meaning "the highest or supreme." It's related to the word for God in the Swahili language. As a name, Omari has a distinguished aura - conveying moral strength and leadership. It also reflects spiritual qualities like divine guidance.

Oakes: Oakes is an English surname that originated from an oak tree, representing strength and wisdom. The oak tree also symbolizes honor, liberty and stability. As a given name, Oakes retains the aura of fortitude and resilience - as well as natural beauty and majesty.

Oceanus: In Greek mythology, Oceanus was an ancient god of the ocean - making this name connected to the sea. As such, Oceanus is an uncommon name invoking the mighty, endless, mysterious qualities of the ocean - depth, power, magic.

Oberon: Oberon was the king of the fairies in medieval legends made famous in Shakespeare's A Midsummer Night’s Dream. Oberon has connotations of magic and mysticism. But as the fairy king, it also implies strength, leadership, and power.

Odysseus: Odysseus is the legendary Greek mythical hero known for his courage, intelligence and leadership during the Trojan War and long, adventurous journey home. The name signifies resilience, ingenuity and valor.

Octavius: Octavius has Latin roots meaning "eight" - Octavius was the eighth month of the early Roman calendar. It's an imposing, strong name related to power and leadership, as the Roman emperors Augustus and Octavian bore this name.

Otto: Otto is an Old German name meaning "wealth" and "fortune." It spread across Europe in the Middle Ages as various rulers were named Otto. Now it feels refined yet approachable - retaining a aura of European nobility and prosperity.

Osgood: Osgood is an English name meaning "divinely good" - invoking moral strength and leadership. Osgood also has some literary/pop culture connections as a character name used by Charles Dickens and Marvel comics giving it a quirky flair.

Oberyn: Oberyn is a unique spin on Oberon, the mythical fairy king. It has roots in literature such as A Midsummer Night's Dream. Oberyn retains an exotic, mystical sense while having a bold, daring energy - perfect for a fearless hero.

Oshun: Oshun is the Yoruba Orisha associated with sweet waters, beauty, love and fertility. As a name, it invokes the flowing, nurturing and creative powers of this feminine water spirit - a rare quality for a masculine name.

Ozymandias: Ozymandias may mean "king of kings" in Greek, although more famously it's associated with a Shelley poem depicting the crumbling remains of a statue of an ancient Egyptian pharaoh by that name. The name has a sense of majesty now touched by melancholy.

Om: Om is the mystical syllable used in Hinduism & Buddhism representing birth, death & rebirth. It connects the singer to all existence, time, space and knowledge. Though short, Om as a name has an aura of depth, wisdom, continuity and oneness with all life.

Oleander: Named after the lovely yet toxic flowering shrub, Oleander has antique origins and a dual connotation - deadly beauty or beautiful death. Its rich sound reflects its rich associations.

Onyx: Named after the black precious stone, Onyx has an aura of luxury and mystery. Black also represents power and sophistication in some cultures. The sleek, strong name Onyx condenses volumes of meaning.

Ophiuchus: Ophiuchus is a constellation meaning “serpent bearer” in Greek. In astrology it’s linked to healers and seekers of wisdom. As a name, Ophiuchus has a scholarly yet exotic mystique - perfect for an enlightened visionary.

Orville: Orville means "gold town" of Old French origins. It has positive overtones of value, quality and prosperity. A distinguished name with historic charm, Orville possesses an old-fashioned warmth and integrity.

Obergefell: Obergefell is an uncommon German surname meaning “upper field” or “upper territory.” It has a sturdy, steadfast aura - representing rising elevation and progress. Thanks to a famous Supreme Court case, it also now signifies victory for civil rights.