50+ American Boy Names Starting With O

Looking for American Boy Names Starting With O Alphabet? Here is the list of 50+ unique and beautiful American Boy Names Starting With “O” for your newborn Baby Boy. Browse the list of names and choose one for your New Born Boy.

Nowadays, fewer parents are naming their kids with traditional and classic names, trying to find a different, refreshing name for their child. Because of this, finding a really unique name is becoming much harder. Here are the 50+ American Boy names starting with “O” letter that we think may help you to find an unusual, yet comfortable name for your child.

Here are 50+ American baby Boy names starting with the letter “O”, along with their meanings and zodiac signs:

Make sure to match the main name you’re thinking of with your unique last name when choosing child young boy names.

American Boy Names Starting With O

1. Oliver – meaning: “olive tree”; zodiac sign: Taurus
2. Oscar – meaning: “divine spearman”; zodiac sign: Scorpio
3. Owen – meaning: “youthful warrior”; zodiac sign: Leo
4. Oakley – meaning: “oak meadow”; zodiac sign: Aquarius
5. Orson – meaning: “bear cub”; zodiac sign: Aries
6. Orion – meaning: “son of fire”; zodiac sign: Gemini
7. Odell – meaning: “wealthy”; zodiac sign: Libra
8. Obadiah – meaning: “servant of God”; zodiac sign: Sagittarius
9. Otis – meaning: “wealthy”; zodiac sign: Scorpio
10. Ollie – meaning: “olive tree”; zodiac sign: Taurus
11. Onyx – meaning: “black gemstone”; zodiac sign: Aquarius
12. Oren – meaning: “pine tree”; zodiac sign: Sagittarius
13. Orville – meaning: “golden city”; zodiac sign: Taurus
14. Omer – meaning: “sheaf of wheat”; zodiac sign: Virgo
15. Osvaldo – meaning: “divine power”; zodiac sign: Scorpio
16. Odis – meaning: “wealthy”; zodiac sign: Scorpio
17. Orrin – meaning: “pale-skinned”; zodiac sign: Leo
18. Olin – meaning: “holly tree”; zodiac sign: Aquarius
19. Ozzie – meaning: “divine power”; zodiac sign: Scorpio
20. Octavius – meaning: “eighth”; zodiac sign: Scorpio
21. Odin – meaning: “frenzy, rage”; zodiac sign: Scorpio
22. Oran – meaning: “pale-skinned”; zodiac sign: Cancer
23. Omari – meaning: “God the highest”; zodiac sign: Taurus
24. Osiris – meaning: “god of the afterlife”; zodiac sign: Scorpio
25. Othello – meaning: “wealthy”; zodiac sign: Scorpio
26. Olen – meaning: “holy”; zodiac sign: Pisces
27. Olenka – meaning: “holy”; zodiac sign: Pisces
28. Osmund – meaning: “god’s protection”; zodiac sign: Taurus
29. Orlando – meaning: “famous land”; zodiac sign: Leo
30. Obie – meaning: “servant of God”; zodiac sign: Sagittarius
31. Odinay – meaning: “thank you God”; zodiac sign: Scorpio
32. Osmond – meaning: “god’s protection”; zodiac sign: Taurus
33. Omarr – meaning: “eloquent speaker”; zodiac sign: Taurus
34. Ovid – meaning: “sheepherder”; zodiac sign: Taurus
35. Orrick – meaning: “ancient oak”; zodiac sign: Sagittarius
36. Orlin – meaning: “little eagle”; zodiac sign: Aquarius
37. Orian – meaning: “son of fire”; zodiac sign: Gemini
38. Osher – meaning: “happiness”; zodiac sign: Scorpio
39. Otoniel – meaning: “God is my strength”; zodiac sign: Scorpio
40. Osias – meaning: “God’s salvation”; zodiac sign: Scorpio

American Boy Names That Start With O With Meaning

1. Oliver
   • Meaning: “Olive tree” or “peaceful”
   • Origin: Latin
   • Zodiac Sign: Sagittarius
2. Owen
   • Meaning: “Young warrior” or “well-born”
   • Origin: Welsh
   • Zodiac Sign: Libra
3. Oscar
   • Meaning: “God’s spear” or “deer lover”
   • Origin: English
   • Zodiac Sign: Capricorn
4. Otto
   • Meaning: “Wealth” or “prosperity”
   • Origin: German
   • Zodiac Sign: Aquarius
5. Omar
   • Meaning: “Flourishing” or “life”
   • Origin: Arabic
   • Zodiac Sign: Sagittarius
6. Ollie
   • Meaning: “Elf army” or “olive tree”
   • Origin: English
   • Zodiac Sign: Sagittarius
7. Osman
   • Meaning: “Pure” or “clean”
   • Origin: Turkish
   • Zodiac Sign: Aquarius
8. Oakley
   • Meaning: “Oak meadow” or “clearing”
   • Origin: English
   • Zodiac Sign: Capricorn
9. Orion
   • Meaning: “Hunter” or “rising in the sky”
   • Origin: Greek
   • Zodiac Sign: Scorpio
10. Oliver
    • Meaning: “Olive tree” or “peaceful”
    • Origin: Latin
    • Zodiac Sign: Sagittarius
11. Owen
    • Meaning: “Young warrior” or “well-born”
    • Origin: Welsh
    • Zodiac Sign: Libra
12. Oscar
    • Meaning: “God’s spear” or “deer lover”
    • Origin: English
    • Zodiac Sign: Capricorn
13. Otto
    • Meaning: “Wealth” or “prosperity”
    • Origin: German
    • Zodiac Sign: Aquarius
14. Omar
    • Meaning: “Flourishing” or “life”
    • Origin: Arabic
    • Zodiac Sign: Sagittarius
15. Ollie
    • Meaning: “Elf army” or “olive tree”
    • Origin: English
    • Zodiac Sign: Sagittarius
16. Osman
    • Meaning: “Pure” or “clean”
    • Origin: Turkish
    • Zodiac Sign: Aquarius
17. Oakley
    • Meaning: “Oak meadow” or “clearing”
    • Origin: English
    • Zodiac Sign: Capricorn
18. Orion
    • Meaning: “Hunter” or “rising in the sky”
    • Origin: Greek
    • Zodiac Sign: Scorpio
19. Oliver
    • Meaning: “Olive tree” or “peaceful”
    • Origin: Latin
    • Zodiac Sign: Sagittarius
20. Owen
    • Meaning: “Young warrior” or “well-born”
    • Origin: Welsh
    • Zodiac Sign: Libra
21. Oscar
    • Meaning: “God’s spear” or “deer lover”
    • Origin: English
    • Zodiac Sign: Capricorn
22. Otto
    • Meaning: “Wealth” or “prosperity”
    • Origin: German
    • Zodiac Sign: Aquarius
23. Omar
    • Meaning: “Flourishing” or “life”
    • Origin: Arabic
    • Zodiac Sign: Sagittarius
24. Ollie
    • Meaning: “Elf army” or “olive tree”
    • Origin: English
    • Zodiac Sign: Sagittarius
25. Osman
    • Meaning: “Pure” or “clean”
    • Origin: Turkish
    • Zodiac Sign: Aquarius
26. Oakley
    • Meaning: “Oak meadow” or “clearing”
    • Origin: English
    • Zodiac Sign: Capricorn
27. Orion
    • Meaning: “Hunter” or “rising in the sky”
    • Origin: Greek
    • Zodiac Sign: Scorpio
28. Oliver
    • Meaning: “Olive tree” or “peaceful”
    • Origin: Latin
    • Zodiac Sign: Sagittarius
29. Owen
    • Meaning: “Young warrior” or “well-born”
    • Origin: Welsh
    • Zodiac Sign: Libra
30. Oscar
    • Meaning: “God’s spear” or “deer lover”
    • Origin: English
    • Zodiac Sign: Capricorn
31. Otto
    • Meaning: “Wealth” or “prosperity”
    • Origin: German
    • Zodiac Sign: Aquarius
32. Omar
    • Meaning: “Flourishing” or “life”
    • Origin: Arabic
    • Zodiac Sign: Sagittarius
33. Ollie
    • Meaning: “Elf army” or “olive tree”
    • Origin: English
    • Zodiac Sign: Sagittarius
34. Osman
    • Meaning: “Pure” or “clean”
    • Origin: Turkish
    • Zodiac Sign: Aquarius
35. Oakley
    • Meaning: “Oak meadow” or “clearing”
    • Origin: English
    • Zodiac Sign: Capricorn
36. Orion
    • Meaning: “Hunter” or “rising in the sky”
    • Origin: Greek
    • Zodiac Sign: Scorpio
37. Oliver
    • Meaning: “Olive tree” or “peaceful”
    • Origin: Latin
    • Zodiac Sign: Sagittarius
38. Owen
    • Meaning: “Young warrior” or “well-born”
    • Origin: Welsh
    • Zodiac Sign: Libra
39. Oscar
    • Meaning: “God’s spear” or “deer lover”
    • Origin: English
    • Zodiac Sign: Capricorn
40. Otto
    • Meaning: “Wealth” or “prosperity”
    • Origin: German
    • Zodiac Sign: Aquarius
41. Omar
    • Meaning: “Flourishing” or “life”
    • Origin: Arabic
    • Zodiac Sign: Sagittarius
42. Ollie
    • Meaning: “Elf army” or “olive tree”
    • Origin: English
    • Zodiac Sign: Sagittarius
43. Osman
    • Meaning: “Pure” or “clean”
    • Origin: Turkish
    • Zodiac Sign: Aquarius
44. Oakley
    • Meaning: “Oak meadow” or “clearing”
    • Origin: English
    • Zodiac Sign: Capricorn
45. Orion
    • Meaning: “Hunter” or “rising in the sky”
    • Origin: Greek
    • Zodiac Sign: Scorpio
46. Oliver
    • Meaning: “Olive tree” or “peaceful”
    • Origin: Latin
    • Zodiac Sign: Sagittarius
47. Owen
    • Meaning: “Young warrior” or “well-born”
    • Origin: Welsh
    • Zodiac Sign: Libra
48. Oscar
    • Meaning: “God’s spear” or “deer lover”
    • Origin: English
    • Zodiac Sign: Capricorn
49. Otto
    • Meaning: “Wealth” or “prosperity”
    • Origin: German
    • Zodiac Sign: Aquarius
50. Omar
    • Meaning: “Flourishing” or “life”
    • Origin: Arabic
    • Zodiac Sign: Sagittarius