Choosing the perfect name for your baby boy is a special journey. Names carry a deep significance, often reflecting heritage, tradition, and family values. If you are looking for American baby names that start with the letter “O”, you’re in the right place. Here are 88 unique and meaningful baby boy names starting with “O”, along with their origins and meanings. Whether you are searching for unique American baby names or traditional options, we have something for every taste.
83 American Baby Boy Names Starting With O
1. Oakley
Meaning “oak meadow”, Oakley is a nature-inspired name that symbolizes strength and resilience. This name has gained popularity in recent years, thanks to its unique sound and connection to the great outdoors.
2. Odin
Odin is derived from Norse mythology, where Odin is the chief god. The name is associated with wisdom, war, and magic, making it a strong and powerful choice for a baby boy.
3. Omar
Omar is of Arabic origin, meaning “flourishing” or “life”. This name is widely used across cultures and carries a sense of vitality and prosperity.
4. Onyx
Onyx is a gemstone name, symbolizing strength and protection. This unique name is gaining traction among parents looking for a modern yet meaningful name for their son.
5. Otto
Otto is of German origin, meaning “wealth” or “fortune”. This timeless name has been popular for generations and conveys a sense of prosperity and success.
6. Oscar
Oscar has Irish origins, meaning “deer friend”. It’s a name that evokes images of nature and friendship, making it a lovely and traditional choice for a baby boy.
7. Oliver
Oliver is a classic name of Latin origin, meaning “olive tree”. The olive tree is a symbol of peace and prosperity, making this a meaningful choice for a baby boy.
8. Oren
Oren is a Hebrew name meaning “pine tree” or “ash tree”. This nature-inspired name is simple yet elegant, representing growth and strength.
9. Owen
Owen is of Welsh origin, meaning “young warrior” or “well-born”. This name has a strong historical background and is a popular choice for parents seeking a name with a noble connotation.
10. Osiris
Osiris is derived from Egyptian mythology, where Osiris is the god of the afterlife. This name carries a sense of mystery and power, making it a unique choice for a baby boy.
11. Omari
Omari is of Swahili origin, meaning “God the highest”. This name has spiritual significance and is a beautiful choice for parents looking for a meaningful name with African roots.
12. Orion
Orion is a name of Greek origin, associated with the great hunter in Greek mythology. It’s a name that exudes strength and adventure, perfect for a boy destined for greatness.
13. Ozzy
Ozzy is a short form of the name Oswald or Oscar. It carries a modern, fun vibe while maintaining a sense of history and tradition. It’s a perfect choice for parents looking for something unique.
14. Octavio
Octavio is of Latin origin, meaning “eighth”. This name is typically used by families with a strong connection to their heritage and is popular in Spanish-speaking cultures.
15. Olin
Olin is a unique name of Scandinavian origin, meaning “ancestor’s heir”. This name has a strong, historical feel, making it perfect for parents who value tradition.
16. Odie
Odie is a playful and cute name, often associated with the famous cartoon character. It’s a quirky and fun name for parents who want something lighthearted and cheerful.
17. Owen
Owen is of Welsh origin and means “young warrior” or “well-born”. It’s a popular name that combines strength and nobility, making it a favorite choice for many.
18. Otto
Otto is of German origin, meaning “wealth” or “fortune”. This classic name has been in use for generations and conveys a sense of prosperity and strength.
19. Oak
Oak is a strong, nature-inspired name, symbolizing strength and endurance. It’s a simple yet powerful name for parents who want something with a natural connection.
20. Oren
Oren is a Hebrew name meaning “pine tree”. It’s a name that represents growth and strength, ideal for parents who appreciate nature and simplicity.
21. Ollie
Ollie is a cute and modern variation of the name Oliver. It’s playful, friendly, and easy to pronounce, making it a popular choice among parents looking for a short and sweet name.
22. Osmond
Osmond is of Old Norse origin, meaning “God’s protection”. This name carries a sense of divine strength and security, making it a meaningful choice for parents seeking a traditional name with spiritual significance.
23. Oswin
Oswin is an Anglo-Saxon name meaning “God’s friend”. It has a charming and historical vibe, perfect for parents who want a name with Christian roots.
24. Orenzo
Orenzo is a modern twist on the name Lorenzo, meaning “from Laurentum”. It carries a sophisticated, international flair while maintaining a sense of elegance and class.
25. Orville
Orville is of French origin, meaning “golden city”. This vintage name has a nostalgic feel and is often associated with the pioneers of aviation, giving it a sense of adventure and ambition.
26. Otis
Otis is a name of Greek origin, meaning “wealth” or “fortune”. This strong, vintage name has been a favorite for generations, often associated with great success and prosperity.
27. Orlando
Orlando is of Italian origin, meaning “famous throughout the land”. The name has a romantic and heroic vibe, made famous by Shakespeare’s play “As You Like It”.
28. Orenzo
Orenzo is a modern variation of the name Lorenzo, meaning “from Laurentum”. This name gives off a unique, sophisticated vibe, perfect for parents looking for something fresh yet rooted in tradition.
29. Obi
Obi is of Nigerian origin, meaning “heart” or “leader”. It’s a short, strong name that is simple yet powerful, ideal for parents who want a meaningful name with African roots.
30. Omari
Omari is a name of Swahili origin, meaning “God the highest”. It has a spiritual meaning and reflects a sense of reverence and respect, making it a unique choice for a baby boy.
31. Orson
Orson is of Latin origin, meaning “bear cub”. This name has a rugged, nature-inspired feel, perfect for parents looking for a strong and enduring name.
32. Oziel
Oziel is a Hebrew name meaning “God is my strength”. This name carries a deep spiritual meaning, perfect for parents who want to inspire their child with faith and resilience.
33. Odinson
Odinson is a Norse surname meaning “son of Odin”. It’s a bold and powerful name, carrying with it a sense of ancient history and strength.
34. Olaf
Olaf is a Norse name meaning “ancestor’s relic” or “descendant of the ancestors”. It has a rich historical meaning, often associated with Vikings and Scandinavian heritage.
35. Onyxus
Onyxus is a unique twist on the gemstone name Onyx, adding an exotic flair. This name symbolizes protection and strength, making it a strong choice for parents seeking something distinct.
36. Osias
Osias is of Hebrew origin, meaning “salvation”. It’s a name with deep religious significance, ideal for parents seeking a name with spiritual meaning.
37. Othello
Othello is of Greek origin, meaning “afflicted”. The name is best known from Shakespeare’s play “Othello”, giving it a dramatic and literary appeal.
38. Orenzo
Orenzo is a modern variation of Lorenzo, meaning “from Laurentum”. It’s a name that carries an international and sophisticated sound while still being easy to pronounce.
39. Orion
Orion is a name of Greek origin, meaning “son of fire”. It’s associated with the mighty hunter in Greek mythology, carrying a sense of adventure and bravery.
40. Olafsson
Olafsson is a Scandinavian surname meaning “son of Olaf”. It carries a sense of heritage and strength, perfect for parents who value family traditions.
41. Odell
Odell is of Old English origin, meaning “from the valley”. It’s a name that evokes natural imagery, perfect for parents who appreciate nature-inspired names.
42. Omari
Omari is of Swahili origin, meaning “God the highest”. This name has spiritual significance and is a beautiful choice for parents who want something unique with a religious connotation.
43. Olwen
Olwen is a Welsh name meaning “white footprint”. It’s a rare name with deep cultural roots, often associated with the Welsh mythology of the goddess Olwen.
44. Odie
Odie is a fun, whimsical name popularized by the comic character. It’s lighthearted and easygoing, perfect for a joyful and energetic child.
45. Onuris
Onuris is an Egyptian name associated with the god of war and hunting. It’s a unique and powerful name for parents looking for something bold and mythological.
46. Omen
Omen is a name of uncertain origin, but it carries a sense of mystery and forewarning. This name has an air of intrigue, perfect for parents who like unique, unusual names.
47. Omri
Omri is of Hebrew origin, meaning “my sheaf”. It’s a name with deep historical and biblical roots, perfect for parents seeking something with spiritual meaning.
48. Olin
Olin is a Scandinavian name meaning “ancestor’s heir”. It’s a name that evokes a sense of family heritage and legacy, making it perfect for parents with a strong connection to their ancestry.
49. Osvaldo
Osvaldo is of Spanish origin, meaning “God’s power”. This name carries a sense of strength and divine protection, perfect for parents who want a bold and meaningful name.
50. Ollivander
Ollivander is a name popularized by the “Harry Potter” series. It’s a whimsical name associated with magic and creativity, perfect for parents who are fans of fantasy and adventure.
51. Otavio
Otavio is of Italian origin, meaning “eighth”. This name has a sophisticated sound, often used in Italian and Portuguese-speaking countries.
52. Orson
Orson is of Latin origin, meaning “bear cub”. It’s a rugged and nature-inspired name, ideal for a strong and adventurous child.
53. Orestes
Orestes is a Greek name meaning “mountain dweller”. It has deep mythological roots and is often associated with the Greek hero Orestes.
54. Omran
Omran is of Arabic origin, meaning “prosperity” or “flourishing”. It’s a name that symbolizes success and growth, making it a meaningful choice for a baby boy.
55. Ozzie
Ozzie is a diminutive of names like Oswald or Oscar. It’s a modern, playful twist on traditional names, perfect for a fun and energetic boy.
56. Olrick
Olrick is of German origin, meaning “ancient ruler”. It’s a strong, noble name with historical significance, ideal for a child destined for greatness.
57. Olaric
Olaric is of Old German origin, meaning “ruler of all”. This name has a strong, regal vibe, making it a great choice for parents who want a name that conveys power and leadership.
58. O’Hara
O’Hara is of Irish origin, meaning “descendant of the army”. It’s a surname that has evolved into a first name, with a distinct and historic feel.
59. Oberon
Oberon is of Germanic origin, meaning “noble” or “bear-like”. This name carries a sense of strength and royalty, often associated with the king of the fairies in Shakespeare’s “A Midsummer Night’s Dream”.
60. Olin
Olin is a name of Swedish origin, meaning “ancestor’s heir”. It’s a name that speaks to family legacy and strength, perfect for a boy who will carry on a proud family tradition.
61. Oslo
Oslo is the capital of Norway and a unique name that evokes images of Scandinavian landscapes and heritage. It’s a simple yet distinctive choice for parents who appreciate geography and nature.
62. O’Neal
O’Neal is of Irish origin, meaning “descendant of the champion”. It’s a name with a strong sense of heritage and history, perfect for a boy destined to be a leader.
63. Ollivander
Ollivander is a whimsical name associated with magic, thanks to the famous wand maker in “Harry Potter”. It’s ideal for parents who appreciate creativity and fantasy.
64. Otmar
Otmar is a name of German origin, meaning “wealthy and famous”. It’s a name that conveys success, power, and prestige.
65. Ozzy
Ozzy is a playful nickname for names like Oswald or Oscar. It’s fun and energetic, perfect for a boy with a bright and lively personality.
66. Omri
Omri is a biblical name of Hebrew origin, meaning “my sheaf”. It carries deep spiritual meaning, perfect for parents who appreciate traditional names with a religious background.
67. Oleander
Oleander is a botanical name, symbolizing grace and beauty. It’s a rare and exotic name, ideal for parents looking for something unique and nature-inspired.
68. Oswin
Oswin is an Anglo-Saxon name meaning “God’s friend”. It carries a deep spiritual meaning, making it a lovely choice for parents seeking a name that reflects their faith.
69. Orville
Orville is of French origin, meaning “golden city”. It’s a vintage name with a sense of adventure, often associated with the pioneers of flight.
70. Odrick
Odrick is of Old German origin, meaning “wealthy ruler”. It’s a strong, noble name that conveys power and success.
71. Ollie
Ollie is a fun, modern nickname for Oliver, meaning “olive tree”. It’s a friendly and approachable name that’s easy to pronounce and remember.
72. Orson
Orson is of Latin origin, meaning “bear cub”. It’s a rugged name with strong associations to nature and bravery.
73. Orin
Orin is a variant of Oren, meaning “pine tree” or “ash tree”. It’s a name with a deep connection to nature and growth.
74. Odin
Odin is a Norse name meaning “the god of wisdom”. It’s a powerful and unique name with deep mythological significance.
75. O’Brien
O’Brien is an Irish surname meaning “descendant of Brien”. It’s a strong name with deep cultural roots in Ireland, perfect for parents with Irish heritage.
76. Omri
Omri is a biblical name that means “my sheaf”. It’s a meaningful, classic name with spiritual roots.
77. Orlando
Orlando is an Italian name meaning “famous throughout the land”. It carries with it a sense of nobility and adventure.
78. Odinson
Odinson is a name derived from Norse mythology, meaning “son of Odin”. It’s a strong, powerful name with a heroic vibe.
79. Olan
Olan is a unique name of African origin, meaning “wealthy” or “noble”. It’s a short and distinctive name with a rich meaning.
80. Osiris
Osiris is an ancient Egyptian name, meaning “God of the afterlife”. It’s a bold and mysterious name with deep historical significance.
81. Ollie
Ollie is a modern variation of Oliver, often used as a cute nickname. It’s a friendly, easy-to-remember name.
82. Odysseus
Odysseus is a name from Greek mythology, associated with the great hero of Homer’s “Odyssey”. It’s a powerful and adventurous name.
83. Olwen
Olwen is a Welsh name meaning “white footprint”. It’s a rare and beautiful name, often tied to Welsh mythology.
Conclusion
Choosing the right name for your baby boy is a special decision that reflects your values, hopes, and dreams for his future. The names starting with “O” offer a variety of meanings and origins, from classic names like Oscar and Oliver to more unique choices like Onyx and Osiris. Whether you’re looking for something timeless or contemporary, these names will provide your little one with a meaningful and distinctive identity.
If you’re interested in more options, feel free to explore Boy Names or check out American Baby Names for additional inspiration. Whatever you choose, remember that the name you give your son will be a reflection of his unique journey and the legacy he carries forward.
