1770+ Boy Names Ending in O

  1. Ebo
    • Origin:

      African, Akeradini
    • Meaning:

      "born on Tuesday"
    • Description:

      Ebo is a powerful African day name that can be used to fit its definition.
  2. Hanzo
    • Origin:

      Japanese
    • Description:

      Heard most frequently in 18th century Japan, Hanzo is a rarity in modern culture. Hattori Hanzo was a legendary samurai of the Sengoku Era. A modern day namesake might be Hanzo Shimada, from the video game Overwatch. Hanzo is one of many unique baby names from Asia and from the gaming world.
  3. Pio
    • Origin:

      Latin
    • Meaning:

      "pious"
    • Description:

      Though the variation Pius is too, well, popeish, Pio might work for an ordinary boy.
  4. Pellegrino
    • Origin:

      Italian variation of Peregrine
    • Description:

      The water, period.
  5. Pedro
    • Origin:

      Spanish; Portuguese variation of Peter, Greek
    • Meaning:

      "rock, stone"
    • Description:

      Pedro is one of the most familiar Spanish names for boys, via baseball star Pedro Rodriguez and many others.
  6. Kailo
    • Origin:

      Variation of Kylo
    • Meaning:

      "narrow spit of land"
    • Description:

      Two beloved, fashionable names combined to make one: Kai, a simple and serene Hawaiian name meaning "ocean" and Kylo, created for Star Wars character Kylo Ren, played by Adam Driver. With Kailo, you get the best of both worlds.
  7. Dio
    • Description:

      Dio is a masculine name with rich historical and multicultural roots. In Italian, it directly means 'God,' deriving from the Latin 'Deus.' In Greek mythology, Dio can be a shortened form of Dionysos, the god of wine and festivity. The name gained some recognition in popular culture through Ronnie James Dio, the renowned heavy metal vocalist, and through the character Dio Brando in the Japanese manga series 'JoJo's Bizarre Adventure.' Despite its powerful meaning and historical connections, Dio remains relatively uncommon as a given name in most Western countries. Its brevity, strong sound, and cross-cultural appeal make it attractive to parents seeking a distinctive yet simple name with spiritual or mythological connections.
  8. Donaldo
    • Description:

      Donaldo is a masculine name that represents the Spanish and Italian form of Donald. Its roots trace back to the ancient Celtic name Dòmhnall, meaning 'world ruler' or 'world mighty.' The name combines 'dumno' (world) and 'val' (rule, might, power). Donaldo carries a dignified, international flair while maintaining connections to its Celtic heritage. It's particularly popular in Latin American countries and Italy, where it's appreciated for its strong sound and distinguished character. The name experienced modest popularity during the mid-20th century and continues to be used, though not abundantly. Donaldo offers families a way to honor Donald relatives while giving the name a romantic language twist, perfect for multicultural families or those appreciating names with both strength and melodic qualities.
  9. Lauro
    • Origin:

      Diminutive of Laurence
    • Description:

      A heck of a lot cooler than Larry.
  10. Jojo
    • Description:

      Jojo is a playful, gender-neutral name often used as a masculine name in its own right or as a nickname for names like Joseph, Jonathan, Jordan, or Johannes. Its repetitive structure gives it a bouncy, cheerful quality that resonates across cultures. The name gained significant visibility through pop culture, including the manga/anime series 'JoJo's Bizarre Adventure' and various musicians and celebrities. With its approachable two-syllable pattern, Jojo conveys a youthful energy and friendly personality. Though relatively uncommon as a legal first name in most Western countries, it has gained traction in recent decades as parents increasingly choose names with an informal, affectionate quality. Its cross-cultural appeal makes it recognizable in many regions worldwide.

  11. Kahlo
    • Origin:

      German
    • Meaning:

      "bald"
    • Description:

      A small number of parents are inspired to choose Frida Kahlo's surname for their sons and daughters each year. The Mexican artist had German ancestry from her father's side, and Kahlo is actually German in origin. It comes from kahl, meaning "bald."
  12. Toivo
    • Origin:

      Finnish, Estonian
    • Meaning:

      "hope"
    • Description:

      This name was on the U.S. Top 1000 in the early 20th century, when recent immigrants frequently chose native names that have since died out for American babies. But if you're of Finnish or Estonian ancestry, you may want to consider reviving this one with a positive meaning.
  13. Ugo
    • Origin:

      Italian variation of Hugh, Igbo
    • Meaning:

      "mind, intellect; eagle"
    • Description:

      Ugo is a familiar choice in Italy and France, where it is used as variation of Hugh or Hugo, but also in Nigeria, where it means "eagle" in Igbo.
  14. Iago
    • Origin:

      Welsh and Galician variation of James and Jacob
    • Description:

      Iago, the villain of Shakespeare's Othello, was so treacherously evil that his name has hardly ever been heard offstage. Try the much-more-benign Inigo.
  15. Kyoto
    • Origin:

      Place-name
    • Description:

      Japanese city name not yet on the map for babies, but why not?
  16. Coro
    • Origin:

      Native American
    • Meaning:

      "wind"
    • Description:

      A place name from Venezuela believed to come from an indigenous word for wind, this can make an innovative choice for a child of either sex.
  17. Leto
    • Origin:

      Italian surname
    • Meaning:

      "happy; joyful"
    • Description:

      Leto Atreides is the father of protagonist Paul of the Dune franchise. Other parents may use this name for its connection to actor and musician Jared Leto.
  18. Pavo
    • Origin:

      Croatian or Latin
    • Meaning:

      "small, humble or peacock"
    • Description:

      Short form of Croatian Pavao, related to Paul. In Latin, it means "peacock" and is the name of a constellation in the southern sky, which resembles a peacock's tail.
  19. Artemio
    • Origin:

      Spanish variation of Artemis
    • Description:

      Artemio gives energy to this august Greek mythological name.
  20. Po
    • Origin:

      Italian river name
    • Description:

      A river (in Italy), a writer (Bronson), a Teletubby: the Bo of the new millennium.