New England Patriots linebacker Adalius Thomas brought his Latinate name into the spotlight, and he has an equally unusual middle name--DONQUAIL.

Adalius

Worn by several medieval troubadours, this name is still used in French, Spanish and Portuguese-speaking countries.

Ademar

Akira is a popular Japanese name for both sexes that's migrated to the West because of its appearance in manga and video games.  Akiro is a related name popular for boys.

Akira

Most American parents would choose to use the more commonly seen variant, AXEL.

Aksel

Alard looks and sounds like the name of a romantic, medieval knight. It's dashing and unusual; but still easy to pronounce and spell. Cognate Adelard might also appeal if you are considering this name.

Alard

Alarico

Introduced to the lexicon by the husband of Little House on the Prairie writer Laura Ingalls Wilder, most scholars agree that this unusual name comes from the Arabic El-Mansur.

Almonzo

Alonzo is dashing and debonair, with a large measure of Latin flair.
 You may be surprised to know that Alonzo has been on the Most Popular list since 1880, when such records began to be kept, at which point it was Number 110. The same is true for nickname Lon, which was 193 at the time.
 Alonso Quijano was the real name of Don Quixote--Alonso being the Spanish version of the name. In the old Judy Garland musical Meet Me in St. Louis, Alonzo/Lon was the name of both her father and brother. 
 Horror film star Lon Chaney was christened Leonidas, but Lon Chaney, Jr. was Creighton at birth. Alonzo Mourning is a former basketball star who goes by the nickname Zo--much more modern sounding than Lon or Lonnie.

Alonzo

A well-used Spanish saint's name with a lot of flair that could definitely cross over to more general usage. It reached its peak in the United States in 1985, when it ranked Number 456. In Spain, Alvaro is a Top 20 boys' name.

Alvaro

Amadeo and Amedeo are both valid Italian forms of the Roman Amadeus, most famous as the middle name of the composer Mozart as well as the title of a movie about him. Mozart's name was actually the Greek Theophilus, but he transformed it to the Latin version. Amadeo is also used in Spain, where it was the name of a 19th century king who was born in Italy.

Amadeo

Gentle but grandiose and beloved by British novelists including Evelyn Waugh and P. G. Wodehouse, Ambrose was a fast rising name in 2022. Entering the UK Top 1000 for the first time and proving popular among Nameberry users, its elegance, softness, and vintage style means it fits in with popular Theodore, Sebastian, and Jeremiah. 
 With an air of blooming well-being, Ambrose feels a bit upper-class, a little posh, but not too stuffy. It comes from the same Greek root as 'ambrosia', the food of the gods, said to confer immortality.
 Ambrose was the name of one of the important doctors of the early Christian church, the fourth century St. Ambrose. It also belonged to one of the four great Latin teachers of Christianity, who also developed the use of music in church services. TV fanatics might be interested to know that in 1961, Ambrose was designated the patron saint of educational television by Pope John XXII.
 One thing that might given some parents pause is the problem of finding a nickname for the stately Ambrose. Ami? Bro? Amby? They might work for some, but other options include the stylish Bo, the literary Bram, the sweet Ro, or even the unexpected and unisex Rose.

Ambrose

Amias or Amyas is a <a href="https://nameberry.com/list/317/unique-baby-names">unique name</a> with an attractive sound and feel and a lovely meaning. Though it might sound like a Biblical name, it is not, but is a surname that may be related to Amadeus or even be a male version of Amy--which would make it one of the few boys' names to be derived from a girls'.
 The Amyas version became known via the hero of the mega-popular 1855 Charles Kingsley novel, Westward Ho!, Captain Sir Amyas Leigh.

Amias

Amory is the kind of executive-sounding surname name that became popular in the 1990s. Amory Blaine is the protagonist of the F. Scott Fitzgerald novel, This Side of Paradise.

Amory

Plausible word name, denoting strength and stability. 

Anchor

Friendly, unusual, but a decidedly Old Country version of Andrew and one of the classic <a href="https://nameberry.com/baby-names/173/scandinavian-names">Scandinavian names</a>. It made a brief appearance in the US Top 1000 in 2006 and then reentered in 2010. Its rising popularity could be attributed to the interest in Anderson, which has been gaining steadily over the last fifteen years.
Trivia tidbits: The patronymic Andersson is the second most popular surname in Sweden, and in Denmark, Donald Duck is called Anders.

Anders

Anderson shot up quite a bit on the <a href="https://nameberry.com/popular-names">popular names</a> list in the 2000's, no doubt in large part due to the prominence of white-haired cable newsman Anderson Cooper. Perhaps surprisingly though, Anderson was even higher on the list in 1880. Actress Edie Falco named her son Anderson in 2005. Though there haven't been many first-named Anderson namesakes, there have been countless notables bearing the surname, including Hans Christian, Marian, Maxwell, Sherwood, Gillian, Laurie, and Pamela.

Anderson

Andre is one of the international forms of Andrew that has been familiar in the English-speaking world for decades without any need to be overly Anglicized - though round the world, it is more likely to be written as André.

With its hint of flair, Andre has in fact been in the US Top 1000 names for boys for a century now, reaching the Top 200 in the 70s and 80s. Now, use of Andre has declined, but it is still in the Top 400 and given to more than 1060 babies each year.
 
Globally, Andre remains a popular choice in Brazil and Portugal, though it is also used in England, Mexico, Germany and France.

Andre

Andreas is a beautiful name, with the patina of an Old Master painting, one that could make a dashing namesake for an Uncle Andrew. 
 In Europe, Andreas is currently in the Top 20 in Norway and is also popular in Denmark, Sweden, Germany, and Austria.
Some other international variations of Andrew you might want to consider — Andre, Andrei, Andres, Andrea, and Anders.
 Notable namesakes include photographer Andreas Feininger. One not-so-pleasant association: the San Andreas fault line in California.

Andreas

Mythological name with a fabulous meaning. Sure it's weighty, but so is Aphrodite; Andy is an easy nickname choice to make this name more wearable in the classroom.

Androcles

Ansel, primarily associated with the great western photographer Ansel Adams, famed for his magnificent photographs of the Yosemite Valley, could make a creative artist-hero choice. For Adams it was a family name – he was named after his uncle, Ansel Easton. And, in turn, Adams was the namesake of young heartthrob Ansel Elgort, son of a photographer.
 Derived from the same root as Anselm, Ansel is a medieval Germanic name that still feels fresh and stylish today.
 Ansel has been far from a <a href="https://nameberry.com/list/317/unique-baby-names">unique baby name</a> – it was on and off the popularity lists in the late nineteenth and early twentieth centuries, reaching as high as Number 540 in 1893.

Ansel

Equally strong, dramatic and romantic, this name of an old kingdom in the Iberian Peninsula and a modern Spanish community as well, would give a boy an instant pedigree.


Aragon

One of Dumas' swashbuckling Three Musketeers, now better known as a men's cologne. 

Aramis

A more distinctive alternative to Angelo. 

Argento

Better than Capricorn or Cancer, not as usable as Leo, the name of the Roman god of war becomes more possible as a baby name every day, as mythological names take the place of biblical names. 

Aries

The great philosopher's name is commonly used in Greek families, and is one that could work for daring, philosophy inclined American ones. 

Aristotle

There's something particularly attractive about names with an interior "j" and Arjan is a prime example. The Punjabi version is pronounced with a conventional j as in jar; the Dutch Arjan, which is a variation of Adrien, pronounces the 'j' like a 'y'. Another Dutch version is Arje.

Arjan

Arkady is a rhythmic Russian saint's name from the Greek meaning "from Arcadia." As a literary name, it belongs to a genteel character in Turgenev's Fathers and Sons and a much less benign one in Dostoyevsky's Crime and Punishment, and is also a key figure in Gorky Park by Martin Cruz Smith.

Arkady

Arlin

Arrius appears in the fourteenth century writings of Geoffrey Chaucer, but this name is even older.

Arrius was a Roman general, and he appears briefly in Starz original series Spartacus. With names like Maximus and Julius in favor, Arrius fits right in.

Arrius

A short but strong biblical name with multicultural appeal, Asa is enjoying new visibility thanks to hot young actor Asa Butterfield of Hugo fame. 
 Asa was the name of an important biblical king of Judah, who reigned for more than forty years. In modern times, the name was long associated with the strong patriarch Asa Buchanan on the soap opera "One Life to Live," but since the character "died" in 2007, this gives the name plenty of room to rejuvenate. Popular with the Puritans, Asa can be found in the novels of James Fenimore Cooper and Theodore Dreiser. 
 A notable real-life namesake is the highly influential botanist Asa Gray, and Asa was the birth name of Al Jolson. Radiohead's Colin Greenwood has a son named Asa. 
 Asa could also be a path to the hip nickname Ace or an alternative to the rapidly rising Asher.

Aslan, derived from the Old Turkic for "lion," is best known in the West as the name of the heroic lion in C.S. Lewis' "Chronicles of Narnia" series, who serves as an allegorical stand-in for Jesus Christ. It was also used as a positive epithet for several Turkish emperors in the Middle Ages.

Aslan

Atlas is one of those names that was previously thought too powerful for a baby boy, who would have to be strong enough to carry the world on his shoulders. Now Atlas has joined the pantheon of Greek and Roman god and goddess names in the realm of possibility, along with Mars, Zeus and Apollo.

 Atlas was one of the fast-rising names on the list in recent years in the USA, jumping from oblivion in 2012 into the Top 500 in 2015, and climbing several hundred places higher since then. Anne Heche was one of the first to make this audacious choice, but several celebrity parents have followed suit.

 As well as the mythological connection, Atlas is a cool geographical word name – perfect for the child of parents who love traveling or who hail from different parts of the globe.

Atlas

Rarely heard in the US, Auberon has a gentle autumnal feel rare in a male name. Possibly starting as a pet form of Aubrey, it was also infuenced by Oberon, the king of the fairies in Shakespeare's A Midsummer Night's Dream.
 The most famous bearer of the name is British journalist and critic Auberon Waugh (whose grandfather was Aubrey and whose nickname was Bron), of the literary Waugh clan.
 The Oberon spelling is another recommended option.

Auberon

A historic name seeing some modern use among French-speaking parents.

Audric

Augustine is more substantial (and saintly) than August, less pretentious than Augustus, and, along with its nickname Gus, is definitely a viable choice. 
 Augustine is actually the diminutive form of Augustus and achieved its fame via the great fourth century saint, St. Augustine of Hippo, whose teachings and writings had a great effect on early Christianity.
 A major character in Uncle Tom's Cabin is Augustine St. Clare. The full name of the author of Ulysses and Finnegans Wake is James Augustine Aloysius Joyce.
 Model Linda Evangelista chose the French form Augustin for her son, also used by Jerry Hall and Mick Jagger as a middle name for their son James.
 The Spanish Agustin is experiencing a wild burst of popularity in South America: in recent years it has been the number one name in Uruguay and in the Top 5 in Argentina.

Augustine

Aurelian

Loose, lean, and lanky cowboy-sounding names have become a recent trend, but how about the name of a real one--the Singing Cowboy Gene. Autry might be thought of as a masculine spin on the fashionable Audrey or a fresher version of Austin or Auden. 
Some other cowboy surnames from the Golden Age of movie and TV westerns: Boone, Boyd, Cody, Corrigan, Gibson, Hart, Holt, Houston, McCoy and Renaldo.

Autry

Averill is an ancient name, most properly spelled Averil, that has a Boston Brahmin air – probably due to the image of statesman Averill Harriman. It's of the rare English surname names that originally derived from a female given name: Eoforhild (Everild), meaning "boar battle". 

Averill

Avidor

A classic in its native Scandinavia, Axel has a cool rock 'n' roll flavor in the US, thanks to Guns N' Roses' Axl Rose (born William). With its distinctive letter 'x', it has an effortlessly cool vibe about it, and is currently growing in popularity.
 
Axel is the Scandinavian form of the Biblical Absalom, who was a son of King David, and is the name of the title character of William Faulkner's Absalom, Absalom. More wearable than its derivation, perhaps, Axel is currently ranks in the Top 100 names for boys in the US, the UK, Sweden, France, Spain, and Norway. 
 In the US, it first entered the popularity charts in 1989, one year after the release of one of Guns N' Roses biggest hits, showing just how influential popular culture can can be.
 More recently, Axel was chosen by Will Ferrell for his third son, and also by Rob McElhenney and Kaitlin Olson for their boys, and it's the middle name of Tiger Woods' boy Charlie. Axel Foley was the character played by Eddie Murphy in the Beverly Hills Cop movies and, going further back again, was the name of an important character in Jules Verne's Journey to the Center of the Earth. 
 
A bit like a updated Alex, Axel was given to 4500 babies in the US in 2023, so if it was an undiscovered gem you were after, you could consider Absalom itself, or perhaps another Scandinavian option, such as Anker, Konrad, Torfinn, or Torkell.

Axel

All s-ending names are fashionable right now, and Azarius has a handsome sound. With Azariah confidently in the Top 1000, and variations Azaire and Azair having small moments of their own, Azarius might be next.

Azarius

Angler

Avett

A word name with an appealing and illuminating meaning. 

Beacon

Bear has suddenly lumbered onto the baby name landscape.  Perhaps inspired by British adventurer Bear Grylls (born Edward Michael), first celebrity chef Jamie Oliver used it as the middle name for his boy Buddy, and more recently Alicia Silverstone called her son Bear Blu., followed by Kate Winslet's Bear Blaize. It's part of a current trend normalizing once aggressive animal names like Wolf and Fox. Bear is now Number 218 on Nameberry and in the Top 900 in England.

Bear

Beau suggests someone devilishly handsome, with a large measure of southern charm—a nice image to bestow on your boy. Often solely a nickname in the past, it's now standing firmly on its own. Beau has been on the Social Security list non-stop since 1969.
 Beau also has something of a dapper image, thanks to the fashionable Beau Brummell (born George), which led to the stylish New York mayor Jimmy Walker being called Beau James. Other notable Beaus had more formal names at birth—Beaus Bridges and Biden were both the third sons in their families to carry their fathers' names: Lloyd Vernet Bridges III and Joseph Robinette Biden III.
 P.C. Wren's novel Beau Geste was a major bestseller in its day and was also a popular movie—in that case Michael was the character's birth name. Many will remember that the child of Ashley and Melanie Wilkes in Gone With the Wind was called Beau, and there was also a Beau on the old TV western Maverick.
 And if you want a more substantial name on the birth certificate, try Beauregard.
 Art Garfunkel, Emma Bunton, Wendy Wilson, Jamie-Lynn Sigler, and now Tori Spelling all have sons named Beau.

Beau

Last-name-first-name with a romantic but dangerous edge. 

Berenger

Bjorn is one of the most recognizable <a href="https://nameberry.com/baby-names/173/scandinavian-names">Scandinavian names</a>, thanks in large part to tennis great Björn Borg, winner of five consecutive Wimbledon singles titles and six French opens and something of a rock star figure.
 
Bjorn has been in use since the days of the Vikings, but got a boost in popularity when Borg ruled the courts. There have also been other notable Bjorns in various fields in Sweden, Norway and Germany, ranging from the first king of Norway to a member of the pop group ABBA.
 
And if you do pick this name for your son, your baby Bjorn can be carried around in a Baby Bjorn.

Bjorn

Attractive Scottish and Irish surname name of a seventh-century saint, associated with the illusionist and escape artist David Blaine.

Blaine

As modern as it sounds, Blaise is an ancient Christian martyr name. In Arthurian legend, Blaise is the name of Merlin the Magician's secretary. Its relation to the word and name Blaze gives it a fiery feel. Amanda Beard named her baby boy Blaise Ray.
 Saint Blaise, an Armenian bishop, is the patron saint of wild animals and those with sore throats. Blaise Pascal was the seventeenth century French mathematician-physicist-inventor-writer-philosopher among whose many accomplishments was the invention of the calculator. And in the modern world, Blaise Zambini is a minor character in the Harry Potter franchise.

Blaise

Bram has an unusual measure of character and charm for a one-syllable name; it started as a hipper-than-Abe diminutive of the biblical Abraham, but is also an independent Irish and Dutch name, made famous by Irish-born Dracula creator Bram (nee Abraham) Stoker. Bram is currently Number 16 in the Netherlands; Bram Howard was a character on The West Wing.
 Another route to Bram is Bramwell, as in early actor Bramwell Fletcher, who &mdash; speaking of horror movies &mdash; was noted for his mad scenes in the 1932 film The Mummy.

Bram

Branigan, also spelled Branagan or Brannigan, is an Irish name full of energy and cheer. It was the title of a 1975 John Wayne movie, and Zapp Brannigan is the antihero of the animated sitcom "Futurama." 

Branigan fans might also want to consider such related <a href="https://nameberry.com/baby-names/168/irish-names">Irish names</a> as Brennan and Breccan, Rafferty and Finnegan.

Branigan

This Irish name of a saint from the Isle of Aran also appears in myth and fantasy fiction, giving it an intriguing, mystical air. 
 Some modern parents are attempting to update the spelling, as in the actor Breckin (middle name Erin) Meyer or the most popular form of the name, Brecken.

Breccan

Sudsy name that could be a new character on "Days of Our Lives." 

Breck

Brencis

Brennan is a winning Irish surname name, more modern than Brian or Brendan, more unusual than Conor and Aidan. The only possible problem with Brennan: people might think you're saying Brendan.
 Brennan eased onto the very bottom of the popularity list in 1966, and has pretty much remained in the Top 1000 ever since.

Brennan

Brenner is an occupational surname for both a charcoal burner and a distiller of spirits. One of the least used of occupational surnames, it has that 'er' ending that definitely adds to its stylishness; a possible successor to Brendan.


Brenner

A recent addition to the Most Popular list, Bridger has the trendy two-syllables and 'er' ending, and a historical reference to Jim Bridger, a foremost nineteenth-century frontiersman, explorer, trapper, scout, and teller of tall tales. 
 Bridger might be a nice name for a baby whose heritage bridges two cultures.

Bridger

For the parent who might also have Buck and Ryder on his list. 

Bronco

Caddaric

This surname borne by several early Welsh leaders has a lot of energy. 

Cadogan

Cagney is one of the spunkiest Irish surnames around, and could make a lively and fresher successor to the tired Casey.
 James Cagney will be remembered not only for his iconic gangster films, but also for his Academy-Award-winning performance as song-and-dance man George M. Cohan in Yankee Doodle Dandy. Cagney & Lacey was a popular 1980's policewomen drama.

Cagney

Caius is classical and serious but also has a simple, joyful quality. There was a third century pope named Caius, as well as an early Christian writer, several Shakespearean characters, and a Twilight vampire. We would pronounce the name to rhyme with eye-us though at Cambridge University in England, where it's the name of a college, it's pronounced keys. 
 Nickname Cai is a definite asset.

Caius

Artistic associations with the sculptor who invented the mobile make this one of the more creative surname choices. 

Calder

A beaming, friendly Irish last-name-first-name waiting to be discovered. 

Calhoun

Calisto

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.
 
Calix derives from the Latin word for chalice, calyx, which in turn came from the Ancient Greek word kálux, meaning "husk" or "pod." It is also considered a diminutive of Calixtus, a variation of the Late Roman name Callistus meaning "most beautiful." Calyx can also be spelled Calyx, as in the funnel or chalice-shaped part of a flower.

Calix

Calixto is known in Spain as the name of three popes, one of whom was the martyr, Callixtus I, regarded as a saint. Calixto has a lot of energy and futuristic spirit, thanks in part to the attention-grabbing 'x.' He is the main character in the Spanish classic, Fernando de Rojas's Tragicomedy of Calixto and Melibea.

Calixto

Another animated Irish surname, this one with jazzy ties to the immortal "Dean of American Jive," Cab Calloway.

Callaway

Can be used either with or without the addition of Mac. 

Callister

Calloway is one of those irresistibly jaunty, animated three-syllable surnames, like Sullivan and Finnegan — but this one has the added attraction of jazzy ties to the immortal "Dean of American Jive," Cab Calloway.
 There was a 1951 comedy spoof called "Calloway Went Thataway."

Calloway

Callum, a charming Scottish name high on the list in England, Scotland and Northern Ireland, is rising through the ranks in the US now too. And it comes complete with the easy nickname Cal. Kyle MacLachlan chose Callum for his son. Callum might also be spelled Calum; in Ireland, the name became Colm, and in Scotland it's sometimes used as a pet form of Malcolm.
 
Callum was derived from Latin Columba, a unisex given name meaning "dove." Callum was popular among early Christians because the dove was a symbol of purity, peace and the Holy Spirit. St. Columba was one of the most influential of the early Celtic saints.

Callum

Now that Camilla is super popular, why not consider the male version? It's been the name of dozens of prominent Italians -- including a 16th century pope -- throughout history, and Shakespeare used for a Sicilian nobleman in The Winter's Tale.

Camillo

An ancient Celtic name worn by one of the Knights of the Round Table, as well as a semi-legendary Welsh King.

Caradoc

This stuffy English surname and hotel name took on Twilight cool when attached to vampire Carlisle Cullen.  Inspired by the character, it's more popular in this spelling than as Carlyle and more widely used for boys than for girls.

Carlisle

Carlow

Casimir, a traditional name of Polish kings, could do quite well these days as we see the rise of Caspian, Cassius, Castiel, et. al. Like Leopold and Laszlo, Casimir is strong and worth considering if you've got an adventurous streak — and bet your son will too. An alternative commonly cited meaning that modern parents might prefer is "proclaimer of peace". The traditional Polish spelling of the name is Kazimir.

Casimir

All names Cas are cool right night, from Cassius to Cassian to Caspian to, yes, Casimir and its Latin form Casimiro. An attractive possibility in this appealing group.

Casimiro

Cassander is the masculine form of Cassandra, and the name of an ancient king of Macedon from the 3rd century BC. It could make a nice alternative to Alexander or a refreshing way to honour a female relative named Cassie/Cassandra/Sandra.

Cassander

Cassio is a notable Shakespearean name that's a member of the ever-more-popular Cassius family of names.  Cassio was Othello's young, good-looking, and flirtatious lieutenant.

Cassio

Cassius, a Shakespearean name rooted in antiquity, is trending in a major way. It's one of a raft of Cas-starting names for both boys and girls, including Caspian, Cassian, and Cassia, that are enjoying a new moiment in the sun.
 
There were two notable Ancient Roman figures named Cassius. Cassius Dio wrote an 80-volume history of Rome. Gaius Cassius Longinus, a senator who led the assassination plot against Julius Caesar, is the main figure in Shakespeare's The Tragedy of Julius Caesar. 

 In more modern times, Cassius Clay was an abolitionist and also the birth name of boxer Muhammad Ali. It was chosen for their sons by singer Bobby Brown and Getty heir/actor Balthazar Getty. Vanessa Marcil and Brian Austin Green used the nouveau Kassius spelling for theirs. With these namesakes, it's no surprise this name has become popular in recent years. 

 Americans tend to pronounce the name CASH-us while Europeans, including the British, say CASS-ee-us. Cass and Cash are both accessible nicknames.

Cassius

Castiel, which vaulted into the Top 1000 on the wings of the angel hero of the television show Supernatural, is the name of the Angel of the day Thursday. It may also derive some appeal from the newly-fashionable "Cas" syllable, as in Cassian and Cassius.

Castiel

The name of an ancient Irish saint is in the contemporary Irish Top 50. While it's one of the rare <a href="https://nameberry.com/list/328/irish-baby-names-for-boys">Irish names for boys</a> that hasn't immigrated to the U.S., it may follow brothers Aidan and Declan to our shores. The t is not pronounced.

Cathal

Bearded, fusty name of great old Roman lyric poet; just what the bold vanguard baby namer might be looking for. 

Catullus

Anglicized spelling of a county in Ireland, sometimes considered a variation of the Breton Kavan or of Kevin.  Depending on your viewpoint, may make a fresh Kevin substitute or a choice that will drive you mad explaining that, no, it isn't Kevin.

Cavan

Pleasant Irish last name that could be a more masculine alternative to the overused Cassidy.  Early kings of Leinster bore the name, which relates to the first name Caomhan or Kevin and can also be spelled Kavanagh, Cavanagh, Cavenagh, and Kavanaugh.


Cavanaugh

Chaplin carries two very distinctive images: the beloved Little Tramp and a minister, often to the military. It was the baby-name choice of Ever Carridine in 2010.

Chaplin

A handsome Irish name for boys, very popular in that country, but in the US this traditional spelling might cause pronunciation problems. Still, whether Cian or Kian, it's simple and straightforward enough for the initiated. Cian is rising in the British popularity charts. 
This was the name of several legendary figures, including Cian, son of the god of medicine. His own son was Lugh, the sun god and father of the Ulster warrior Cuchulain and Cian is also the name of the son-in-law of the high king Brian Boru. So very well connected.

Cian

Cielo

Clancy, one of the original crossover Irish surname names, is as energetic and appealing as ever &mdash; full of moxie, more distinctive than Casey, and also one of the less obvious of the red-headed names.
 A literary namesake is Clancy Sigal, author of the autobiographical novel Going Away, and there is also the comical mid-century song, Clancy Lowered the Boom.
 More common as a last name than a first, Clancy has gained fame via the Irish folk music group the Clancy Brothers, and one of the bestselling authors of all time, Tom Clancy, known for his espionage and techno thrillers.

Clancy

Claudio, a most appealing Italian name, is featured in not one, but two Shakespearean plays, ,Measure for Measure and Much Ado About Nothing. While "lame" is the most widely acknowledged meaning, some etymologists theorize that the name may relate to the word for enclosure or clause, an alternate meaning that may appeal to a child with a form of this otherwise-attractive name.

Claudio

Claudius is one of the most user-friendly of the ancient Roman names – even though it's associated with the villainous character in Shakespeare's Hamlet. But as with feminine form Claudia, the "lame" meaning may stymie the rise of Claudius. Some etymologists theorize that the name may relate to the word for enclosure or clause, an alternate meaning that may appeal to a child with a form of this otherwise-appealing name.

Claudius

The great sax player John Coltrane could be a cool naming inspiration for a jazz fan. 

Coltrane

If there are too many Connors in your neighborhood, this name is equally authentic and much more unusual. Spelled Conal or Conall, it's a prominent name in Irish history, borne by a number of kings and heroes.

Conal

Connolly, an alternate spelling of Connelly, could make a livelier and less common substitute for Connor.

Connolly

Conroy is one Con name that feels a bit dated, though perhaps it's so far out it's coming in? Worth consideration if you like Connor but feel it's too widely used.

Conroy

Corky was a sitcom moniker of the fifties, Corcoran a better fit for these times. 

Corcoran

This is a name that deserves more attention. Cordell is an occupational name that, through its similarity in sound to Cornell, Denzel, Dashiell,  Boswell and Maxwell, feels both on-trend and upmarket.

Cordell

Leathery, masculine image, complete with user-friendly short form. 

Cordovan

justthinkin's list "Strong Yet Unusual Names for Boys" of 343 great name ideas: Adalius - Zeke!

Strong Yet Unusual Names for Boys

Names for boys that stand out but won't likely get him confused for a girl.