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1770+ Boy Names Ending in O

  1. Diogo

    • Origin:

      Portuguese form of Diego

    • Meaning:

      "supplanter"

    • Description:

      Diogo is the much-less-known brother of Diego, both forms of James, which is itself a form of the Biblical Jacob. And Diego itself probably started life as a short form of Santiago, aka Saint Jago, aka Saint James.
  2. Dino

    • Origin:

      Italian, diminutive of any name ending in -dino

    • Description:

      Italian heritage name. It's sweet and simple, but has fallen almost out of use since its heyday in the 1960s.
  3. Hiroto

    • Origin:

      Japanese

    • Meaning:

      "great flying"

    • Description:

      A very popular Japanese boys' name whose characters refer to the constellation Ursa Major. Short form Hiro might work better in the West, as may another popular Japanese boys' name, Ren.
  4. Tino

    • Origin:

      Spanish, diminutive of Agostino, Justino, Martino, et al

    • Description:

      This nickname name might be cute for a niño, but one of the full names ending in tino would make a more mature statement.
  5. Valentio
    • Cujo

      • Origin:

        Invented name

      • Description:

        Stephen King chose the name Cujo for the rabid St. Bernard character in his 1981 novel by the same name. He based the name off of the alias of William Lawton Wolfe, "Kahjoh", which the media misspelled as Cujo. Wolfe was a member of the Symbionese Liberation Army and one of the people responsible for kidnapping Patty Hearst.
    • Akello

      • Origin:

        Ugandan

      • Meaning:

        "I have brought forth"

      • Description:

        Energetic but mellow.
    • Guillermo

      • Origin:

        Spanish variation of William

      • Description:

        As with Guillaume (see above), Liam, Willem, and Wilhelm, everyday Williams in their own countries, Guillermo is a captivating possibility here. Giermo, Gigermo, Gijermo, Gillermo, Gillirmo, Giyermo, Guermillo, Guiermo Guilermón, Guille, Guillelmo, Guillermino, Guillo, Guirmo, Gullermo, Llermo, Memo, Quillermo.
    • Minco

      • Origin:

        Choctaw, Native American

      • Meaning:

        "chief"
    • Ilario

      • Origin:

        Latin from Greek

      • Meaning:

        "cheerful, happy"

      • Description:

        Ilario's merry, jovial sound reflects a shared root with the word hilarious.
    • Argento

      • Origin:

        Latin

      • Meaning:

        "silvery"

      • Description:

        A more distinctive alternative to Angelo.
    • Valencio

      • Origin:

        Spanish variation of Valentine, Latin

      • Meaning:

        "health, strength"

      • Description:

        Valencio is an energetic, valiant-sounding name, the male form of Valencia.
    • Ido

      • Origin:

        Hebrew and Arabic

      • Meaning:

        "to evaporate and to be mighty"

      • Description:

        Ido is a multicultural name seldom heard in modern America but popular in the Middle East. As transliterations, Ido and its other form Iddo are equally correct.
    • Renato

      • Origin:

        Spanish and Italian

      • Meaning:

        "reborn"

      • Description:

        Elegant and worldly.
    • Enrico

      • Origin:

        Italian variation of Henry

      • Description:

        One of several Latin names starting with E that would work and play well with others in any family.
    • Aro

      • Origin:

        Finnish diminutive of Aaron

      • Description:

        Aro is a cute name from Scandinavia which, given the popularity of similar names like Milo, Arlo etc might be ripe for more usage outside of the Nordic countries.
    • Piero

      • Origin:

        Italian, variation of Peter

      • Meaning:

        "rock"

      • Description:

        Piero is elegant, melodic, appealing. Just picture the muted frescoes of Renaissance artist Piero della Francesca.
    • Danilo

      • Origin:

        Ukrainian; Serbian; Italian; Brazilian Portuguese, variation of Daniel

      • Meaning:

        "God is my judge"

      • Description:

        Makes a Biblical favorite new and interesting.
    • Takeo

      • Origin:

        Japanese

      • Meaning:

        "strong as bamboo"

      • Description:

        Well used in Japan, appreciated for its powerful meaning.
    • Rico

      • Origin:

        Spanish, diminutive of Ricardo

      • Meaning:

        "dominant ruler"

      • Description:

        Consider this short form for your little Richard.