65+ Boy Names Ending in X
Updated Sun Sep 03 2023
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X is a cool letter for baby names, whether those names have x in the beginning, middle or end of their spellings. Boys' names that end in x are especially popular.
The top boy name ending in X is Max. Along with Max, other x-ending boy names in the US Top 1000 include Maddox, Alex, Phoenix, Hendrix, Lennox, Dax, Rex, and Fox. Unique X-ending boys' names on our recommended list include Calix, Felix, Lynx, and Theroux. Here is the collection of x-ending boys' names on Nameberry, ordered by popularity on the site.
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- Felix
Origin:
LatinMeaning:
"happy, fortunate"Description:
Felix is one of those ancient but nontraditional names for boys that have come into favor over the past few decades, a favorite of parents who want a masculine name with history and heft that breaks ranks with the standard Franks and Freds. Felix is also an international darling, ranking in the Top 100 in several European and English-speaking countries.
- Max
Origin:
English and German diminutive of Maximilian or MaxwellMeaning:
"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.
- Calix
Origin:
Male variation of Calixta or LatinMeaning:
"chalice"Description:
Calix is once-obscure name that is starting to see some use in the US, where 47 baby boys were named Calix in 2023. An indirect influence is the actress Calista Flockhart, who introduced Americans to the female version of this attractive Greek name to prominence.
- Knox
Origin:
ScottishMeaning:
"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.
- Phoenix
Origin:
Arizona place-name and GreekMeaning:
"dark red"Description:
Effortlessly cool with a hint of the mystical, Phoenix rolls a lot of trends into one: it's a place-name and a bird name, it ends in the stylish letter x, it's got in-built nicknames, and it's unisex too. Familiar but not over-popular, Phoenix ranks in the US and UK Top 1000s.
- Onyx
Origin:
Word nameMeaning:
"gem stone; claw, nail"Description:
Unlike Pearl and Ruby and more like Jasper, this gem name works well as a boys name. With its strong final X, it feels similar to Alex, Phoenix, Jax, and Rex, while the shiny black quality of the stone feels reminiscent of Orion. Chosen by musician Iggy Azalea for her son in 2020, it has accelerated up the charts and now sits just outside the Top 300.
- Fox
Origin:
Animal nameDescription:
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.
- Lennox
Origin:
ScottishMeaning:
"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.
- Alex
Origin:
Diminutive of Alexander, AlexisMeaning:
"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.
- Rex
Origin:
LatinMeaning:
"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.
- Jax
Origin:
Modern invented name, EnglishMeaning:
"God is Gracious"Description:
Jax is the Dex-Jex-Pax type of x-ending cool -- possibly too cool -- variation of Jack or nickname for Jaxon or Jackson.
- Maddox
Origin:
WelshMeaning:
"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.
- Pax
Origin:
LatinMeaning:
"peaceful"Description:
Pax, one of the variations of names meaning peace that are newly popular in these less-than-peaceful times, got a lot of publicity when chosen by Brad & Angelina for their Vietnamese-born son. Parents attracted to Pax may also want to consider Paz, the unisex Spanish version, or Paxton, a growing-in-popularity surname choice that shares that magical X-factor.
- Roux
Origin:
French from LatinMeaning:
"russet"Description:
Roux is the name of the dashing Johnny Depp character in Chocolat. Roux is French from a Latin word meaning russet or brownish red; it's also a cooking term for a mixture of flour and butter that forms the foundation of many gravies or sauces. Most of today's children with this name, pronounced roo, will actually spell it Rue, for the female character in The Hunger Games.
- Dax
Origin:
French place-nameDescription:
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.
- Eryx
Origin:
Greek mythology nameDescription:
Eryx has a sci-fi sound and deep roots. In Greek mythology, Eryx was the son of Poseidon and Aphrodite and a king in Sicily. He was a great boxer, but was eventually beaten by Heracles. He probably got his name from Mount Eryx in Sicily, now known as Erice. Never used before 2005, this could be a mythological gem to watch - and an alternative way to honor an Eric.
- Hendrix
Origin:
Dutch and German, from first name HendrikMeaning:
"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.
- Jaxx
Origin:
Modern invented name, EnglishMeaning:
"God is Gracious"Description:
Unusual letters like X and Z are often considered badass and cool, so by that logic, does having two Xs in one name make it next level awesome? This seems to have been the thinking of the parents to nearly 3000 babies named Jaxx in America since the spelling first came into use in the 90s.
- Lex
Origin:
Diminutive of AlexanderMeaning:
"defending men"Description:
Cool short form of Alexander, fresher than Alex and less trendy than Xander... for now.
- Lux
Origin:
LatinMeaning:
"light"Description:
Lux, one of the light-filled names that include Lucy and Lucian, broke onto the scene as a girls' name but now it's decidedly gender neutral. In fact, at the last count there were slightly more boys named Lux than girls: 140 to 120. But that's pretty close, making this a truly nonbinary name.