Baby Boy Names Beginning With O - MadeForMums

• Origin: Old English
• Meaning: meadow of oak trees

2. Obadiah

• Origin: Hebrew
• Meaning: serving Jehovah

3. Oberon

• Origin: German
• Meaning: noble, bear-like
• Also: Aubrey

4. Obiajulu

• Origin: African American
• Meaning: the heart is consoled

5. Ocean

• Origin: Modern
• Meaning: the sea

6. Octavius

• Origin: Latin
• Meaning: eighth; a Roman family name used as a first name
• Also: Octavian

7. Odin

• Origin: Scandinavian
• Meaning: frenzy, rage, inspiration; Odin was the father of all Norse gods

8. Odion

• Origin: Mixed African
• Meaning: one of a twin

9. Odo

• Origin: Old English
• Meaning: rich

10. Ofer

• Origin: Hebrew
• Meaning: young dear; implying gentleness and agility

11. Ogden

• Origin: Old English
• Meaning: oak valley

12. Ogilvie

• Origin: Scottish
• Meaning: high place; surname used as a first name
• Also: Ogilvy

13. Oko

• Origin: African
• Meaning: oldest twin

Looking for names for boys starting with other letters of the alphabet?

Complete your baby boy name shortlist by clicking on the letter you’re after 

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14. Olaf

• Origin: Old Norse
• Meaning: ancestors or heir
• Also: Olav

15. Oliver

• Origin: Old French
• Meaning: olive tree
• Also: Ol, Ollie

16. Omar

• Origin: Arabic
• Meaning: flourishing

17. Omari

• Origin: Swahili, Egyptian
• Meaning: in Swahili, God is the highest, in Egyptian, high born

18. Onan

• Origin: Turkish
• Meaning: prosperous

19. Onyx

• Origin: Greek
• Meaning: black gemstone; also used as a girl’s name

20. Orban

• Origin: Latin
• Meaning: circle or globe

21. Orestes

• Origin: Greek
• Meaning: mountain

22. Orion

• Origin: Greek
• Meaning: son of light

23. Orlando

• Origin: Italian
• Meaning: glorious land
• Also: Roland

24. Ormond

• Origin: Gaelic
• Meaning: descendant of the red one
• Also: Ormonde

25. Orson

• Origin: Old French
• Meaning: small bear

26. Orville

• Origin: French
• Meaning: gold town

27. Osbert

• Origin: Old English
• Meaning: bright god
• Meaning: Oz, Ozzy

28. Osborn

• Origin: Old English
• Meaning: god-like man

29. Osborne

• Origin: Norse/Old English
• Meaning: divine bear
• Also: Osbourne

30. Oscar

• Origin: Old English
• Meaning: spear of God
• Also: Oskar

31. Osman

• Origin: Arabic
• Meaning: little bustard

32. Osmond

• Origin: Old English
• Meaning: protected by God
• Also: Ossie

33. Ossian

• Origin: Old Irish
• Meaning: little deer

34. Oswald

• Origin: Old English
• Meaning: power of God
• Also: Oz, Ozzy

35. Oswin

• Origin: Old English
• Meaning: friend of God

36. Otis

• Origin: Old German
• Meaning: son of Otto

37. Otto

• Origin: Old German
• Meaning: wealthy

38. Owen

• Origin: Welsh
• Meaning: lamb
• Also: Owain

39. Oxford

• Origin: Old English
• Meaning: a shallow ford where cattle can cross; a famous university town in the UK

40. Oxton

• Origin: Old English
• Meaning: the ox farm or settlement

41. Oz

• Origin: Hebrew
• Meaning: strength

About our author Catherine Ball

Catherine Ball is a freelance journalist who specialises in writing about parenting and health. She has been a journalist for 20 years, writing for a wide range of regional and national publications. She is also mum to 4 children between the ages 3 and 12, so has drawn up many, many lists of baby names over the past few years.

Illustration: Emma Winchester

Read more:

• 1000 baby boy names – and their meanings
• Baby boy names beginning with N
• Baby boy names beginning with P