Best Boy Names Ending in O

  1. Aurelio
    • Origin:

      Italian; Spanish, variation of Aurelius
    • Meaning:

      "the golden one"
    • Description:

      Aurelio is an energetic Italian name rarely heard in the US, with an attractive aura. As the female version Aurelia gains greater notice, we expect to hear more from Aurelio too. In fact, Aurelio has recently entered the Top 1000 in the US in 2022. Next to follow might be latinate versions Aurelius and Aurelian.
  2. Viggo
    • Origin:

      Scandinavian
    • Meaning:

      "war"
    • Description:

      Though to most Americans Viggo is a one-person name attached to intense actor Mortensen, it is actually an old Norse name dating back to the Vikings, and is currently the 32nd most popular appellation in Sweden. Viggo Mortensen is a Jr., sharing his name with his Danish father.
  3. Shiloh
    • Origin:

      Hebrew
    • Meaning:

      "tranquil"
    • Description:

      Haunting biblical and Civil War place-name; now unisex—especially after the mega-high-profile Brangelina couple picked it for their daughter. It debuted in the Top 1000 for boys in 2015.
  4. Marco
    • Origin:

      Italian and Spanish form of Mark
    • Meaning:

      "warlike"
    • Description:

      Simple and universal, Marco is a Latin classic that would make a much livelier namesake for an Uncle Mark. It was used for her son by actress Jill Hennessy and goes well with surnames of any nationality.
  5. Marlow
    • Origin:

      English
    • Meaning:

      "driftwood"
    • Description:

      Marlow is a suave, unusual surname-name that was chosen by Celine designer Phoebe Philo for her older son. This is a name with many spellings and many difference in gender identity. Marlowe is decidedly female, with only 10 percent of the babies named Marlowe male, while Marlow is 25 percent male, and Marlo is evenly divided.
  6. Emilio
    • Origin:

      Spanish and Italian variation of Emil
    • Meaning:

      "rival"
    • Description:

      Dashing and suave, with a hint of poetry and gentleness, Emilio is an appealing and international choice. A solid favorite in Italy, it is also on the rise in the US, France, Austria, and the UK.
  7. Lorenzo
    • Origin:

      Italian; Spanish, variation of Laurence
    • Meaning:

      "from Laurentium"
    • Description:

      Latinizing Lawrence gives it a whole new lease on life. Like Leonardo, Lorenzo has been integrated into the American stockpot of names, partly via actor Lorenzo Lamas. Other associations are with Lorenzo de' Medici, the Florentine Renaissance merchant prince and art patron, Renaissance artists Ghiberti and Lotto, and the upstanding young man who married Shylock's daughter Jessica in Shakespeare's The Merchant of Venice.
  8. Neo
    • Origin:

      Latin or Tswana
    • Meaning:

      "new or gift"
    • Description:

      This nouveau name of Keanu Reeves's character in The Matrix has not enjoyed the same burst of popularity as its female counterpart, Trinity, but it definitely sounds, well, newer. Neo Rauch is an interesting contemporary German artist.
  9. Leonardo
    • Origin:

      Italian and Spanish variation of Leonard, German
    • Meaning:

      "brave lion"
    • Description:

      For centuries this name was associated primarily with the towering figure of Italian Renaissance painter-scientist-inventor Leonardo da Vinci, and was scarcely used outside the Latin culture.
  10. Santiago
    • Origin:

      Place-name or Latin
    • Meaning:

      "Saint James"
    • Description:

      Santiago is a spirited Spanish name with great crossover potential. It's a place-name (a city in Chile), a surname, and the name of the patron saint of Spain.
  11. 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.
  12. Jethro
    • Origin:

      Hebrew
    • Meaning:

      "excellence"
    • Description:

      Jethro, though the biblical father-in-law of Moses, has suffered for a long time from a Beverly Hillbilly image, but some really adventurous parents might consider updating and urbanizing it and transitioning it into the hip o-ending category.
  13. Bo
    • Origin:

      Norse nickname
    • Meaning:

      "to live"
    • Description:

      A popular name in Denmark, in this country Bo has some cowboy swagger and a lot of substance in its minimal two letters. In Mandarin Chinese, Bo means "wave".
  14. Diego
    • Origin:

      Spanish variation of James
    • Meaning:

      "supplanter"
    • Description:

      The energetic Diego is rising rapidly along with a lot of other authentically Spanish baby names that work perfectly well with surnames of any origin.
  15. Poe
    • Origin:

      English
    • Meaning:

      "peacock"
    • Description:

      An evocative unisex one-syllable name, Poe is most distinguished by its literary reference. Edgar Allan Poe was an influential American author and poet, credited with inventing the genres of detective and science fiction, which might provide inspiration for parents who are fans. And now its choice as the name of the hero played by Oscar Isaac in the new Star Wars movie is sure to catapult it from literary choice to major favorite.
  16. Cato
    • Origin:

      Latin
    • Meaning:

      "all-knowing"
    • Description:

      Cato conjures up images of ancient Roman statesmen and southern antebellum retainers; it could have revival potential, with its 'O' ending and the current interest in the names of Greek and Roman antiquity.
  17. Inigo
    • Origin:

      Basque, medieval Spanish variation of Ignatius
    • Meaning:

      "fiery"
    • Description:

      Inigo, almost unknown in the U.S., is an intriguing choice, with its strong beat, creative and evocative sound, and associations with the great early British architect and stage designer Inigo Jones. The sixteenth-seventeenth century Jones shared his name with his father, a London clockmaker, who received it when Spanish names for boys were fashionable in England, especially among devout Roman Catholics.
  18. Ezio
    • Origin:

      Italian from Greek
    • Meaning:

      "eagle"
    • Description:

      An operatic Italian option via South Pacific star Pinza, one of several Italian names currently hot in France. Ezio is the Italian form of the Greek name Aetius.
  19. Romeo
    • Origin:

      Italian
    • Meaning:

      "pilgrim to Rome, Roman"
    • Description:

      It wasn't so long ago that Romeo was considered as outre for an American baby as Casanova or Cupid. But that really changed when David and Victoria Beckham chose it for their second son in 2002, a path followed by Jon Bon Jovi.
  20. Luciano
    • Origin:

      Italian, Spanish, and Portuguese variation of Lucian
    • Meaning:

      "light"
    • Description:

      A vibrant, operatic choice with plenty of flair and plenty of familiarity too. Popular in Italy, Chile, Uruguay, and Brazil, it also ranks in the Top 500 in France and the US. Operatic tenor Luciano Pavarotti and football manager Luciano Spalletti are two notable bearers

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