1770+ Boy Names Ending in O

  1. Fonzo
    • Description:

      Fonzo is a diminutive form of the Italian name Alfonso, which derives from Germanic origins meaning 'noble and ready' or 'eager for battle.' While less common as a standalone name, Fonzo offers a distinctive, energetic alternative with Italian flair. In Spanish-speaking regions, it may also be used as a nickname for Alfonso or Ildefonso. The name carries a warm, vibrant quality with its strong 'z' sound and melodic flow. Though rare in English-speaking countries, Fonzo has occasional usage in Italian and Hispanic communities, offering a distinctive yet accessible option for parents seeking a name with Mediterranean roots and friendly, approachable character.
  2. Rufino
    • Description:

      Rufino is a masculine name of Latin origin, derived from "Rufus" meaning "red-haired" or "red-headed." It was traditionally given to boys with reddish hair or ruddy complexions. The name has historical significance in Catholic traditions as several saints bore this name, including Saint Rufino of Assisi. Rufino is particularly popular in Spanish-speaking countries, Italy, and Portugal. In the United States, it remains relatively uncommon, giving it a distinctive quality. The name carries connotations of uniqueness and classical heritage, often associated with strength and individuality. Its melodic sound with the ending "-ino" gives it a warm, approachable quality while maintaining its traditional roots.

  3. Natalio
    • Description:

      Natalio is a masculine name of Latin origin, representing the male form of Natalia, ultimately derived from the Latin phrase 'dies natalis' meaning 'birth day.' The name traditionally has strong associations with Christmas, historically given to boys born during the Christmas season. Particularly popular in Spanish-speaking countries and Italian communities, Natalio carries a warm, celebratory significance. While not among the most common names internationally, it maintains steady usage within Hispanic and Latin American cultures. The name conveys a sense of joy and festivity while offering the appealing nicknames Nat or Nate. Natalio's strong vowel endings give it a melodic quality typical of Romance language names.

  4. Sango
    • Origin:

      African language
    • Description:

      Sango is an African lingua franca spoken in Central African Republic. DJ and musician Kai Asa Savon Wright uses Sango as his stage name.
  5. Zandro
    • Description:

      Zandro is a masculine name with multiple possible origins. It may be a creative variation of Alessandro or Alejandro (both forms of Alexander), or possibly a combination of the 'Z' sound with the common '-andro' ending found in Greek-derived names (meaning "man" or "warrior"). The name has particular usage in Filipino communities, where it has gained some popularity as a distinctive yet accessible choice. Zandro carries a modern, energetic quality with its punchy 'Z' beginning while maintaining connections to classical naming traditions. Though uncommon in most Western countries, its international flair and distinctive sound make it appealing to parents seeking something unique yet pronounceable.

  6. Tetsuo
    • Origin:

      Japanese
    • Meaning:

      "wise man"
    • Description:

      Obscure Japanese pick, recognizable to fans of the 1989 Japanese science fiction horror film Tetsuo: The Iron Man.
  7. Serhiyko
    • Description:

      Serhiyko is a masculine name of Ukrainian origin, representing an affectionate diminutive form of Serhiy (the Ukrainian variant of Sergius). The base name derives from the Latin 'Sergius,' which may have Etruscan roots and was the name of several early Christian saints and martyrs. The suffix '-ko' in Ukrainian adds a sense of endearment, similar to adding '-y' or '-ie' in English. This diminutive form would traditionally be used for children or in familiar, loving contexts rather than formal situations. Outside of Ukraine and Ukrainian diaspora communities, Serhiyko remains exceedingly rare. The name carries cultural significance for Ukrainian families while expressing affection and warmth. It represents a connection to Ukrainian heritage and naming traditions.
  8. Laurencio
    • Description:

      Laurencio is a masculine name that represents the Spanish and Portuguese form of Lawrence. Derived from the Latin name Laurentius, which means 'from Laurentum' (an ancient Roman city) or 'crowned with laurel,' symbolizing victory and honor. The name carries a rich historical legacy, as Saint Lawrence was a revered 3rd-century Christian martyr. Laurencio has been used consistently throughout Spanish-speaking countries and communities, offering a melodious, romantic alternative to the more common Lawrence or Lorenzo. While maintaining popularity in Latin American countries and Spain, it remains relatively uncommon in English-speaking regions. The name naturally lends itself to nicknames like Lauro or Enzo, providing flexibility while retaining its distinguished character.
  9. Filippo
    • Origin:

      Italian variation of Philip, Greek
    • Meaning:

      "lover of horses"
    • Description:

      As classic as it comes in Italy — Filippo was once common during the Renaissance, and today remains in the Top 25.
  10. Enesenico
    • Description:

      Enesenico is an extremely rare masculine name with obscure origins, possibly derived from Native American languages or representing a creative modern invention. The name has a rhythmic, melodic quality with its alternating vowels and consonants. Given its rarity, Enesenico does not appear in standard name dictionaries or popularity rankings in any country. The name's structure suggests possible connections to Spanish or indigenous American naming patterns, though specific cultural significance is difficult to determine. The uniqueness of Enesenico would make it a highly distinctive choice, virtually guaranteeing that a bearer would be the only person with this name in most communities.
  11. Cristino
    • Description:

      Cristino is a masculine name with Latin and Spanish origins, functioning as a diminutive or variant of Cristian/Christian, ultimately derived from Latin 'christianus' meaning 'follower of Christ.' Particularly used in Spanish-speaking countries, Cristino has traditional religious associations while offering a distinctive alternative to more common Christian names. The name carries warmth with its melodic quality and expressive -ino suffix, which adds an affectionate dimension. While not among the most popular Spanish names, Cristino has maintained consistent usage throughout history, especially in Catholic communities. The name blends religious heritage with a certain lyrical charm that distinguishes it from more widely used variants.

  12. Maximillano
    • Description:

      Maximillano is an elaborate masculine name that represents an extended form of Maximiliano, itself a Spanish and Italian variation of Maximilian. The name derives from the Latin 'Maximilianus', combining 'maximus' (greatest) with a reference to the Roman family name Aemilius. This ornate version adds an additional syllable to the already grand Maximiliano, creating an exceptionally majestic impression. The name carries associations with ambition, excellence, and magnificence, reinforced by its historical usage among European nobility and royalty. While Maximillano remains quite rare, it might appeal to parents seeking an ultra-formal, distinctive alternative to the more common Max or Maximilian, particularly in Latino or Italian communities.

  13. Murdo
    • Origin:

      Variation of Murdoch
    • Description:

      This modern variation of Murdoch spruces up a Scottish surname that is indelibly linked with controversial media magnate Rupert Murdoch. Definitely one of the more unusual boy names starting with M...or any other letter, for that matter.
  14. Kayo
    • Vello
      • Origin:

        Estonian
      • Meaning:

        "brother"
      • Description:

        An intriguing Estonian with a cool sound, popularised in Estonia in the 1930s because of a character with the same name in the 1934 novel ‘Ümera jõel’ by Mait Metsanurk.
    • Leonato
      • Origin:

        Shakespearean name, form of Leonnatos, Spanish, Portuguese, Greek
      • Meaning:

        "lion's jaw"
      • Description:

        Leonato is one of the main characters in Shakespeare's Much Ado About Nothing, the noble governor of Messina on whose property most of the play takes place. His daughter Hero and his niece Beatrice are the two main female romantic leads in the play. His character is ambiguous; he starts out friendly and amiable, but he reacts very harshly to rumors that his daughter has lost her "honor" before marriage.
    • Arnesto
      • Description:

        Arnesto is a masculine name that appears to be a variation of Ernest or Ernesto. The name ultimately derives from the Germanic element 'ernst,' meaning 'serious' or 'determined.' This variant spelling combines elements of the English Ernest and the Spanish/Italian Ernesto, creating a cross-cultural hybrid. While not widely used, Arnesto has found occasional usage particularly in Hispanic and Latino communities. The name carries the strong, dignified qualities associated with Ernest/Ernesto while offering a slightly different phonetic pattern. Arnesto provides a distinctive alternative that maintains the traditional name's essence of seriousness and resolve while presenting a unique orthographic identity.
    • Eliodoro
      • Origin:

        Spanish from Greek
      • Meaning:

        "sun gift"
      • Description:

        Flowing, melodic boy name with a sun-drenched meaning.
    • Victorino
      • Description:

        Victorino is a masculine name of Latin and Spanish origin, representing an elaborated form of Victor. Derived from the Latin word "victor" meaning "conqueror" or "winner," this name carries strong connotations of triumph and success. The suffix "-ino" adds an affectionate or diminutive quality in Romance languages. Victorino has maintained consistent popularity in Spanish-speaking countries, particularly in Mexico, Spain, and the Philippines, where Spanish naming traditions have historical influence. The name evokes a sense of strength and achievement while maintaining a melodic, approachable quality. Though less common in English-speaking countries, Victorino has seen modest usage among Hispanic communities worldwide. The name offers a distinctive alternative to the more common Victor while preserving its positive associations with victory and accomplishment.

    • Urho
      • Description:

        Urho is a masculine Finnish name meaning 'hero' or 'brave one,' derived from the Finnish word 'urheus' (bravery). The name carries significant cultural weight in Finland, particularly through its association with Urho Kekkonen, Finland's longest-serving president (1956-1982). March 19th is celebrated as Urho's Day in Finland, coinciding with St. Urho's Day, a Finnish-American celebration. The saint, though fictional, is said to have driven grasshoppers from Finland, saving the grape crop. Outside Finland and Finnish diaspora communities, the name remains uncommon but distinctive. With its strong meaning and straightforward pronunciation, Urho offers a powerful yet accessible option for parents drawn to Finnish heritage or simply seeking a name that embodies courage.