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Top Boy Names Ending in X

Boy names ending in X are an exciting group.

Max is the most popular boy name ending with X right now. Along with Max, other boy names in the US Top 1000 include Maddox, Alex, Jax, and Knox.

Here are all Nameberry’s boy names that end with the letter X. The top names below rank among the current US Top 1000 Baby Names and are ordered by popularity. Unique names rank below the Top 1000 and are listed alphabetically.
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MaxHeart

  • Origin:

    English and German diminutive of Maximilian or Maxwell
  • Meaning:

    "greatest"
  • Description:

    Max was derived from Maximilian, a Latin name that originated from the Roman family name Maximus. The character name Max in the children's classic Where the Wild Things Are had an impact on baby namers. Max is a widely used name internationally.

MaddoxHeart

  • Origin:

    Welsh
  • Meaning:

    "son of Madoc"
  • Description:

    Maddox, a previously obscure Welsh family name with a powerfully masculine image, suddenly came into the spotlight when Angelina Jolie chose it for her son in 2003. By the following year it was in the middle of the Top 1000, and it has risen since.

AlexHeart

  • Origin:

    Diminutive of Alexander, Alexis
  • Meaning:

    "defending men"
  • Description:

    The independent Alex has become a classic in its own right. One of the truest unisex names, Alex is used almost equally for both sexes. Alex is used both on its own and as a short form of formal names of both genders, such as Alexander, Alexandra, and Alexis.

FelixHeart

  • Origin:

    Latin
  • Meaning:

    "happy, fortunate"
  • Description:

    Felix was originally a Roman surname but was adopted as a nickname by the ancient Roman Sulla, who believed that he was especially blessed with luck by the gods. It is the name of four popes and sixty-seven saints; in the Bible, Felix is a Roman procurator of Judea.

KnoxHeart

  • Origin:

    Scottish
  • Meaning:

    "round hill"
  • Description:

    Knox is an old Scottish surname that Brad Pitt (whose great-great-grandfather was named Hal Knox Hillhouse) and Angelina Jolie took out of the back cupboard, dusted off, and elevated to coolness--to the point where it entered the popular baby names list in 2009. Knox now ranks among the most influential celebrity baby names.
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PhoenixHeart

  • Origin:

    Arizona place-name and Greek
  • Meaning:

    "dark red"
  • Description:

    Phoenix rolls a lot of cool trends into one: it's a place-name and a bird name, it ends in the oh-so-hip letter x, and as the mythic bird that rose from the ashes, it's a symbol of immortality. It's also got celebrity chops, via the acting family that includes Joaquin and the late River, and as the child of an ex-Spice Girl.

JaxHeart

  • Origin:

    Modern invented name
  • Description:

    Jax is the Dex-Jex-Pax type of x-ending cool -- possibly too cool -- variation of Jack or nickname for Jaxon or Jackson.

HendrixHeart

  • Origin:

    Dutch and German, from first name Hendrik
  • Meaning:

    "estate ruler"
  • Description:

    Hendrix is one of those hip rock and roll names, like Lennon, Jagger and Presley, that have been used by fellow celebs and others, to honor the seminal guitarist/singer/songwriter Jimi. And this one has the trendy 'x' ending, as well, helping to propel it up the charts and into the spotlight.

LennoxHeart

  • Origin:

    Scottish
  • Meaning:

    "elm grove"
  • Description:

    Lennox is an aristocratic and powerful Scottish surname name made truly special by that final x. The worldwide fame of British boxer--World and Olympic champion--Lennox Claudius Lewis brought the name into the spotlight as a first name, while as a last it's tied to Eurythmics singer Annie L.

DaxHeart

  • Origin:

    French place-name
  • Description:

    The appealingly energetic Dax, with its trendy X-ending, re-entered the Top 1000 in 2007. Its somewhat sci-fi vibe emanates from his appearance as a fictional being in the Star Trek universe, seen on the TV show "Star Trek: Deep Space Nine." The Power Rangers character Dax Lo was the Blue Ranger.
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OnyxHeart

  • 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.

RexHeart

  • Origin:

    Latin
  • Meaning:

    "king"
  • Description:

    Now that many dogs are named Max, it's safe to use this sleek, solid, regal name again for your child. And with the charm of its final x, its regal meaning, and its offbeat simplicity, Rex is definitely one to consider.

JaxxHeart

  • Origin:

    Modern invented name
  • Description:

    Jaxx squeaked onto the Top 1000 for boys in 2017, a rising star on the strength of brothers Jax and Jaxon, renegade sons of Jack and Jackson, themselves stylish versions of the ultimate classic boys' name John. While that extra x serves no purpose other than creating a dubious distinction, some namers may feel it makes the name seem less like a nickname and more like an independent entity.

FoxHeart

  • Origin:

    Animal name
  • Description:

    Fox is one animal name backed by a longish tradition, and then popularized via the lead character Fox Mulder on X Files. Fox is simple, sleek, and a little bit wild, and could make an interesting middle name.