Boy Dog Names That Start With O

  1. Oliver
    • Origin:

      Latin
    • Meaning:

      "olive tree or elf army"
    • Description:

      Oliver is an international star, ranking near the top of the charts in the US and throughout the English-speaking world, along with a host of European and Latin American countries, from Norway to Chile, Slovenia to Switzerland.
  2. Oscar
    • Origin:

      English or Irish
    • Meaning:

      "God spear, or deer-lover or champion warrior"
    • Description:

      Oscar is one of the most stylish Old Man Names of our era. While it's softened slightly in popularity over the past 20 years, that may be considered a very good thing.
  3. Otto
    • Origin:

      German
    • Meaning:

      "wealthy"
    • Description:

      Otto is cool again. Long a quintessential Old Man Name, Otto has been promoted to trending darling of adventurous baby namers.
  4. Owen
    • Origin:

      Welsh
    • Meaning:

      "young warrior; well-born"
    • Description:

      Owen, a resonant Celtic name, has ranked among the Top 100 boys' names in the US for 20 years and is now at its highest point ever.
  5. Orion
    • Origin:

      Greek
    • Meaning:

      "boundary, limit"
    • Description:

      Orion is a rising star, with both mythical and celestial overtones.
  6. Otis
    • Origin:

      Variation of Otto, German
    • Meaning:

      "wealthy"
    • Description:

      Otis has real appeal for parents attracted to its catchy O initial and combination of strength and spunk. The appealing hero of the British TV show Sex Education has done much to propel Otis into the forefront of cool names.
  7. Ozias
    • Origin:

      Greek
    • Meaning:

      "salvation"
    • Description:

      Everyone says they want an unusual name — well, if you truly do, this is one with Biblical cred that fits the bill, with the added attraction of the user-friendly nickname of Oz or Ozzie. Ozias is the name of several minor figures in the Bible. Osias is another spelling.
  8. Orson
    • Origin:

      Latin and English
    • Meaning:

      "bear cub"
    • Description:

      Orson has had in the past a rotund teddy-bear image, a la Orson Welles, who early on dropped his common given name of George in favor of his more distinctive middle one, and who seemed to own it during his lifetime. No longer a single-person signature, it's now an interesting possibility for any parent seeking an unusual yet solid name. It's started to appear to the celeb set--both Paz Vega and Lauren Ambrose have little Orsons.
  9. Onyx
    • Origin:

      Gem name
    • Description:

      Unlike Pearl and Ruby, this is one gem name suited for boys, the final x making it sound strong and virile. Musician Iggy Azalea chose the name Onyx for her son.
  10. Oberon
    • Origin:

      Variation of Auberon
    • Meaning:

      "noble, bearlike"
    • Description:

      The Shakespearean character Oberon in A Midsummer Night's Dream is King of the Fairies, but the name, with its strong 'O' beginning, projects a far more virile image than that.
  11. Odin
    • Origin:

      Variation of Óðinn, Old Norse
    • Meaning:

      "god of frenzy; poetic fury"
    • Description:

      Odin is the name of the supreme Norse god of art, culture, wisdom, and law — who was handsome, charming, and eloquent into the bargain. The name projects a good measure of strength and power and has excellent assimilation potential.
  12. Oisin
    • Origin:

      Irish
    • Meaning:

      "little deer"
    • Description:

      Oisin is one of the most popular Irish baby names in its native land, though largely unknown in the US. The original Oisin was the mythological son of Finn McCool and Sadb, the goddess who was changed into a deer. A legendary war hero and poet, Oisin had a name that is also reminiscent in sound of the ocean. Pronounced correctly, this name has an attractive sheen.
  13. Oakley
    • Origin:

      English
    • Meaning:

      "oak wood or clearing"
    • Description:

      As sturdy as Oak, with deeper roots. It's been on the rise for both boys and girls in recent years, with the name comfortably in the top 500 for boys and nearing the Top 100 for girls.
  14. Osiris
    • Origin:

      Egyptian
    • Meaning:

      "with strong eyesight"
    • Description:

      Osiris is the name of Egyptian mythology god-king who died and was reborn every year. Emerging from centuries of obscurity, Osiris has several ingredients for success in the modern world: Roots in ancient myth, an uplifting meaning, an s ending and the cute nickname Os or Oz.
  15. Orlando
    • Origin:

      Italian variation of Roland
    • Meaning:

      "famous throughout the land"
    • Description:

      Orlando, the ornate Italianate twist on the dated Roland, with a literary heritage stretching back to Shakespeare and before, has appealing book-ended o's, and is open to combination with almost any last name, a la British actor, Orlando Bloom.
  16. Oran
    • Origin:

      Hebrew, Irish, Scottish
    • Meaning:

      "light, song, little green one"
    • Description:

      A calm and gentle multicultural choice. Oran is popular in Ireland, where its Gaelic form is Odhrán, meaning "little green one". In Scottish Gaelic, the name means "song", and in Hebrew, it's a combination of Or "light" + Ran "singing".
  17. Orpheus
    • Origin:

      Greek mythology name
    • Meaning:

      "the darkness of the night"
    • Description:

      Name of the legendary ancient Greek poet and musician — whose music was so beautiful it made trees dance and rivers stop to listen — would provide a child with a challenging but indelible identity.
  18. Ozzy
    • Origin:

      Pet form of Oswald, Osborn and Osmond.
    • Description:

      Hard-core rocker Ozzy (born John) Osbourne might not be everyone's idea of a role model, but his nickname name, along with others like Iggy and Izzy, are now being used. Ozzy was one of the fastest-rising boy names of 2021.
  19. Ocean
    • Origin:

      English, nature name
    • Meaning:

      "ocean"
    • Description:

      Nature names like Ocean and River are flowing back into favor, especially with nature lovers and green-oriented parents.
  20. Ori
    • Origin:

      Hebrew
    • Meaning:

      "my light"
    • Description:

      Friendly but substantial.