Boy Dog Names That Start With O

  1. Oslo
    • Origin:

      Norwegian place name, Old Norse
    • Meaning:

      "meadow at the foot of a hill"
    • Description:

      Oslo, the capital city of Norway, makes for an intriguing new place name, especially with its bookended O's, as in Otto. One Berry has already used it and we predict others will follow.
  2. Odysseus
    • Origin:

      Greek mythology name
    • Meaning:

      "wrathful"
    • Description:

      The name of the brave, resourceful hero of Homer's epic saga has almost always been considered too weighty for a child to bear, but at this point, some brave, resourceful parents out there might be willing to take it on.
  3. Oak
    • Origin:

      English tree name
    • Meaning:

      "tree from the genus Quercus"
    • Description:

      Oak, a symbol of solidity, strength, and longevity, is joining Cedar and Pine as a viable name, one that would work especially well in the middle.
  4. Odie
    • Origin:

      Diminutive of Odell, Otis; English, German
    • Meaning:

      "of the valley; wealthy"
    • Description:

      This old-timey nickname for Otis and Odell is strongly tied to Garfield’s canine companion in the Garfield comic, movie, and TV franchise.
  5. Oz
    • Origin:

      Hebrew, Irish
    • Meaning:

      "strength, powerful, courageous; deer friend"
    • Description:

      This may be a legitimate Hebrew name denoting power, but to any American kid, it will evoke ruby slippers and a yellow brick road. The full Hebrew name is Ozni, who was a grandson of Jacob in the Bible.
  6. Octavius
    • Origin:

      Latin
    • Meaning:

      "eighth"
    • Description:

      Octavius, which was at one time used for the eighth child in a family, has the worn leather patina of all the ancient Roman names now up for reconsideration. As a Roman family name, it derives from the uncommon forename Octavus, which designated an eighth son.
  7. Olivier
    • Origin:

      French
    • Meaning:

      "olive tree"
    • Description:

      More and more frequently heard as the Gallic version of Oliver, Olivier could be seen as a tribute to the great British actor, Sir Laurence O.
  8. Ollie
    • Origin:

      Diminutive of Oliver, Latin
    • Meaning:

      "olive tree"
    • Description:

      Down-home nickname name once associated with the friendly dragon on kids' TV. As Oliver rises, we may well hear more Ollies.
  9. Obi
    • Origin:

      African, Igbo
    • Meaning:

      "heart"
    • Description:

      Strongly linked in the US to the complex "Star Wars" character, Obi Wan Kenobi, but also popular in Nigeria as a short form of names containing the element Obi "heart".
  10. Oskar
    • Origin:

      German variation of Oscar
    • Description:

      Oskar is to Oscar as Jakob is to Jacob: more distinctive and continental.
  11. Ozzie
    • Origin:

      Diminutive of Osmond, Oswald, or Oscar
    • Meaning:

      "divine; deer"
    • Description:

      Ozzy has been on the rise in recent years and currently sits in the Top 1000 in the UK and the US. The Ozzie spelling has yet to catch up, but has nevertheless gained more attention thanks to its popular counterpart. Given to 135 boys and to 50 girls in 2023, for every one Ozzie there are three Ozzys.
  12. Omar
    • Origin:

      Arabic, Hebrew
    • Meaning:

      "flourishing, thriving; eloquent"
    • Description:

      Omar has a perfect mix of unusuality and familiarity, with the added plus of a strong, open initial O. Commonly used among Muslim families, Omar was long associated with twelfth-century Persian poet Omar Khayyam, though it sounds anything but ancient now.

      More recent well-known bearers have been World War II General Omar Bradley and actors Omar Sharif(born Michael) and Omar Epps.

  13. Oswald
    • Origin:

      English
    • Meaning:

      "divine power"
    • Description:

      Despite the success of so many O-starting boys names--Oliver, Owen, Otis, Oscar--Oswald has not yet shown any signs of resurrection, though he does have the animating nicknames Ozzie/Ozzy and Oz. The name has some literary cred--in Chaucer's Canterbury Tales, Shakespeare's King Lear and a novel by H. G.Wells--and there was early cartoon character Oswald the Lucky Rabbit.
  14. Octavian
    • Origin:

      Latin
    • Meaning:

      "eighth"
    • Description:

      With the rise of ancient Roman names, Octavian suddenly seem plausible again. A variation of Octavius and relative of the more modern Octavio, it's an equally attractive member of the trio.
  15. Oswin
    • Origin:

      Old English
    • Meaning:

      "God's friend"
    • Description:

      Ancient name, near obsolete now, but could make a good alternative to Owen for the adventurous baby namer.
  16. Osmond
    • Origin:

      English
    • Meaning:

      "divine protection"
    • Description:

      Once too tightly tied to the aging musical clan featuring Donny and Marie, Osmond may now be able to escape that association and join the cooler group of Os and Oz names, which include Osgood, Ozias, and even Oswald.
  17. Osric
    • Origin:

      English
    • Meaning:

      "divine ruler"
    • Description:

      Clad in armor. But while this name may have been forbiddingly antiquated not that long ago, the connection to the trendy nickname Os or Oz makes it a real possibility.
  18. Othello
    • Origin:

      Hebrew
    • Meaning:

      "he has the sound of God"
    • Description:

      Shakespeare's moor has exclusive ownership of this name.
  19. Ophir
    • Origin:

      Hebrew
    • Description:

      Biblical place name and masculine given name in the Old Testament.
  20. Omari
    • Origin:

      Swahili, Arabic
    • Meaning:

      "populous, flourishing"
    • Description:

      This name, like Omar and Amari, has been in the US Top 1000 for many years. After taking a downturn in 2008, it's now again on the upswing. Actor Omari Hardwick keeps it in the public eye.