Abel, the name of Adam and Eve's unfortunate younger son, compensates with positive connotations: capable, competent, ready and willing. 
 Abel has literary connections to the novels of Dickens and Trollope, and is also one of the few well-known Old Testament names not plagued by overuse. Having been chosen for their second son by Amy Pohler and Will Arnett could give it a real popularity bounce.
 Abel's namesakes include two movie directors, Abel Gance and Abel Ferrara, and a pop singer, Abel Tesfaye, more commonly known as The Weeknd.

Abel

Aire is a bygone spelling of "air", now reserved for poetic uses and in Kylie Jenner's case, baby names. Jenner originally announced her son's name to be Wolf, but quickly changed her mind and left the public in the dark. Weeks before his first birthday, she revealed her son's new name to be Aire.
 
Given that he is an air sign, Aquarius, born on 2.2.2022 — considered angel numbers — this skyward, heavenly name is a perfect fit. It also has a meteorological connection to his big sister's name, Stormi.
 
Aire was given to fewer than five babies of either sex the last year counted, although we expect it to make a giant leap a la Stormi's name following her birth. Another factor in its favor: the resonance with the word name Heir, itself a rising choice (and celebrity favorite).

Aire

A spirited German name very popular in Italy and occasionally used here, Aldo is one of the <a href="https://nameberry.com/list/317/unique-baby-names">unique baby names</a> with international flair. And <a href="https://nameberry.com/list/128/boy-baby-names-that-mean-wise">names that mean wise</a> have an enduring appeal.

Aldo

With its musical allusions, a harmonious possibility. 

Alto

Anno is an extreme rarity: a simple, familiar-sounding name with deep history that is completely unknown in the US and rare in its native Germany. Anno is the name of a saint also known as Hanno, a 10th century archbishop of Cologne also known as Hanno of Worms.

Anno

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

Arba

Archer is an Anglo-Saxon surname that feels more modern than most because of its on-target occupational and Hunger Games associations. And it's a nice way to bypass the clunky Archibald to get to the cool nickname Archie.
 But have a look at that amazing popularity chart below: After 1889, Archer took a 130-year nap, resurfacing on the Top 1000 in 2009 and now shooting straight upwards. Five years ago, we named Archer one of our Hottest Names of 2011—and, indeed, it jumped 102 places that year, thanks in part to Archer's similarity to popular Asher and its cross-gender appeal. Moms may like its literary gentility and dads its tough-guy FX cartoon appeal. Or, of course, vice versa.
 Trivia tidbit: Archer is the name of Dr. Doolittle's father.

Archer

Arda is a simple name used for both girls and boys, with roots in several culture. In Turkey, it's usually used for males and means scepter. There is also a Turkish river called the Arda.

The Hebrew name Arda means bronze.

And Arda may be a form of the English Arden, the name of a magical Shakespearean forest.

Arda

This name may mean light but is likely to be heavy to wear outside of Spain. 

Argi

The name of the ship sailed by Jason in his search for the Golden Fleece is now more often used for starch, trucks, and heavy machinery. 

Argo

Ario was derived from the Roman family name Arrius, although it bears closer resemblance to Aria, the Italian name meaning "song."

Ario

Subtract the last two letters of Arnold, and you're left with a much more modern-sounding name.  Arno is also the name of the main river in Florence, upon which sits the famed Ponte Vecchio. The Italian river name means "flowing water".

Arno

Strange as it may now seem, the venerable St. Arnold was a Greek by birth, a musician who became a member of the court of Charlemagne. The name is said to have been introduced into Britain by the Normans in the form Arnaud.
Despite such reputable namesakes as composer Arnold Schoenberg, novelist Arnold Bennett and historian Arnold Toynbee, not to mention the former Governator, Arnold's image has been diminished by some nerdy fictional characters, though he is still a genuine classic who might come back along with Arthur and Albert.
We have heard stirrings of fashionable baby Arnolds populating nurseries alongside those named Wilbur and Barney.

Arnold

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.

Words are not always easy to translate into <a href="https://nameberry.com/">baby names</a>, but the implications of being straight and swift lend this one great potential as a name. It also has the popular o-sound ending, which brings it further into the realm of possibility. Rising rock star Aja Volkman pulled a gender switch when she named her daughter Arrow Eve.

Arrow

Arthur, once the shining head of the Knights of the Round Table, is, after decades of neglect, now being polished up and restored by stylish parents, inspired perhaps by the new generation of royals. Arthur has led the list of possible names for the young British princes, chosen as a middle name for Prince Louis, son of William and Catherine, Prince and Princess of Wales.
 In addition to its leading role in the Arthurian legends, Arthurs figure prominently in Nathaniel Hawthorne's The Scarlet Letter, Edgar Allan Poe's The Narrative of Arthur Gordon Pym of Nantucket and George Eliot's Adam Bede. There are also countless Arthurs in children's literature, movies, and TV -- including The Fonz of Happy Days fame. More recently, Arthur was the son of Mr. and Mrs. Santa in the eponymous movie Arthur Christmas.
 Arthur has many notable namesakes, including playwright Arthur Miller; writer/astronomer Arthur C. Clarke; writers Arthur Conan Doyle, Arthur Rimbaud and Arthur Koestler; philosopher Arthur Schopenhauer; conductor Arthur Fiedler; and tennis great Arthur Ashe, the first African American to win the U.S. Open. Queen Victoria's seventh child was Prince Arthur.
 Arthur was a Top 20 name from at least 1880 through 1926. And in 2011, actress Selma Blair named her son Arthur Saint.

Arthur

Artie is a cute short form rarely given on its own, unlike the more grownup Art. But for a young Arthur, it's adorable.

Artie

Arto

This name's popularity peaked in the 1930s in the mid 600s - but we think it is time for a reconsideration. Arvin feels more modern than similar names like Marvin and Alvin. It also boasts a beautiful meaning and defies easy shortening (which is an asset to many parents who choose a name because they want it to be used!). 

Arvin

Arvo is a simple name virtually unknown in the US and UK that might get discovered thanks to the surprise popularity of Arlo.

Arvo

This biblical name, pronounced ahr yeh, is a not <a href="https://nameberry.com/list/418/best-cool-unusual-boys-names"</a>uncommon boys' name</a> in Israel. It can also be spelled Aryeh , the most popular form by far, or Arieh. The feminine equivalent is Levi'a. Possible down side: Its similarity to the hot girl name Arya or Aria.

Arye

Aryobarzanes or Aryo Barzan, meaning "exalting the Aryans", is the name of a Persian hero who fought against Alexander the Great in 330 BC.

Aryo

Asher—an excellent, soft and sensitive Old Testament choice—is a <a href="https://nameberry.com/boys-names">baby boy name</a> on the rise, and is a Nameberry biblical favorite. 
 
Asher's ascent is especially amazing given that the took a century-long hiatus from the Top 1000, from the 1890s until it reappeared in the 1990s. Asher has been in the US Top 100 for more than a decade now.
 
In the Bible, Asher was one of Jacob's twelve sons who gave their names to the tribes of Israel. Asher is derived from the Hebrew word osher, which means "happiness." Rabbinical scholars claim that the Asherites lived up to this meaning, as they had the most oil, wisdom, and male children compared to the other tribes.
 
The novel My Name is Asher Lev by Chaim Potok, often taught in schools, is the story of a New York Hasidic Jewish boy with artistic aspirations.
 
Oh—and another plus for Asher: the handsome diminutive Ash.

Asher

More common as a dog name than a baby name for now, but that hasn't stopped Milo and Rex rising back up the charts! Lovers of edgy o-ending names like Otto, Arlo and Cosmo might like this starry-eyed possibility.

Astro

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

Atticus, with its trendy Roman feel combined with the upstanding, noble image of Atticus Finch in To Kill a Mockingbird, is a real winner among <a href="https://nameberry.com/boys-names">boy names</a>. Atticus entered the US Top 1000 in 2004 and is a firm Nameberry favorite. 
 
The reason for the popularity of Atticus is less its ancient roots than Atticus Finch, the upstanding hero of To Kill A Mockingbird.. In fact so many people have been inspired by the character embodied by Gregory Peck that Atticus Finch was voted the greatest hero of American film by the American Film Institute. Harper Lee's recently-released novel Go Set a Watchman paints Atticus Finch in a less flattering light, though that doesn't seem to have impacted the rising popularity of the name.
 
Atticus derives from the Greek Attikos, meaning "from Attica," the Ancient Greek region that contained Athens. Atticus is a literary name in more ways than one. Before it became synonymous with Atticus Finch, the name Atticus was associated with Titus Pomponius Atticus, a Roman literary figure.
 Daniel Baldwin and Isabella Hoffman were ahead of the curve when they chose Atticus for their son born in 1996; since then Summer Phoenix and Casey Affleck named their little boy Atticus, and Tom Dumont made it the middle name for his son Rio.

Atticus

The name August is at its highest point since the 1890s, when it ranked among the Top 100 boy names in the US. And deservedly so, given its great meaning, historic roots, and cool nicknames.
THE celebrity baby name of the moment, August was chosen by both Princess Eugenie and Mandy Moore for their baby boys in early 2021. Before that, August had been heating up in Hollywood – used by Mariska Hargitay and Peter Hermann, Lena Olin, Dave Matthews and Jeanne Tripplehorn for their sons
August is the only truly popular month name for boys. The month of August was named after the Emperor Augustus.
 August has two august literary namesakes: the Swedish playwright August Strindberg (it has always been a popular name in Scandinavia), and August Wilson, as well as photographer August Sander.
 The French version is Auguste (ow-GOOST), as in Edgar Allan Poe's clever detective Auguste Dupin and famed sculptor Auguste Rodin.

August

Arlo james

Balbo is more commonly seen as an Italian surname, but in the times of Milo, Otto, and Arlo, what's to stop parents from choosing this unusual name for their child. For aviation buffs comes the added interest of the term signifying the mass fly-by at the end of an airshow.

Balbo

Benno is a cool name in its own right -- there was a tenth century Saint Benno -- though it is also used as a lively nickname for Benjamin. Saint Benno of Meissen is the patron saint of anglers and weavers and, strangely enough, alliteration.
 Benno came to attention in the U.S. via the father and son duo of Benno Schmidt Sr. and Jr. Senior was the venture capitalist who invented the term venture capitalist and Junior was the president of Yale University. Benno is also the appellation of a student character in Umberto Eco's The Name of the Rose.

Benno

Energetic Italian classic that would blend with a surname of any ethnicity. 

Carlo

Carlos is the Spanish and Portuguese variation of Charles, which has been used in solid numbers in the US for as long as data has been kept. Carlos has never fallen out of the Top 600, but peaked from the 70s-early 2000s. Today Carlos is still within the Top 200. 

Notable namesakes include musician Santana, writers Fuentes and Castaneda, and numerous athletes. Carlos Irwin Estevez is the birth name of Charlie Sheen.

Carlos

Groovier than Daniel, with an engaging, upbeat energy. 

Dano

Although this is traditionally seen as a female name, via the classical mythological nymph who pined away for Narcissus until all that remained of her was a disembodied voice — it can also be used for boys. Remember that old song, 'Little sir echo, how do you do?'
 
Amanda Knox has a son named Echo and a daughter named Eureka.

Echo

Elmo, like fellow Sesame Street characters Kermit and Grover, has a hard time being taken seriously. (It isn't easy being red either.)
 But Elmo also calls to mind the image of St. Elmo's fire--the light show sometimes visible around ships' masts during storms at sea, which is quite appropriate since Saint Elmo (another name for Erasmus) is the patron saint of sailors. St. Elmo's Fire was also the title of a classic Brat Pack film of the 1980s.
 There were a lot more Elmos around a century ago, when Elmo was in the top third of the popularity list.

Elmo

Elvo

Enzo originated as the Italian variation of Heinz, a German name derived from Heinrich, related to Henry. It has historically been used as a short form for Italian names such as Vincenzo and Lorenzo. The most famous bearer of the name is Enzo Ferrari, founder of the luxury sports car brand.
 
Like Leonardo and Luca, Enzo is one of the confident and captivating Italian names beginning to be used by parents of all ethnic backgrounds, including Patricia Arquette and Annabeth Gish. In addition to its native country, Enzo is currently mega popular in France and is one of the <a href="https://nameberry.com/baby-names/166/italian-names">top Italian baby names</a> in the US.

Enzo

Esco

Everett is a preppy but outdoorsy name, with wintery New England vibes. In the last decade, it’s had a leap in popularity, perhaps because of its similarity to trendy girls’ names like Ava and Scarlett, or perhaps because it offers a fresh alternative to 90’s style Evan and Brett. 
 
Despite its sleek, sharp sounds, Everett’s meaning lends it some rugged charm. An English variation of the German Eberhard, it means “brave as a wild boar”.
 
George Clooney and Dermot Mulroney drew attention to the name when they played Everetts on screen back in the 2000s. More recently, Everett Ross from Marvel’s Black Panther, and Everett Acker from the television series Breaking Badshone a spotlight back on the name. 
 
Everett feels fresh and contemporary, fitting into the trend of surnames-as-given-names and getting cool points from its fashionable V sound. But it also a name with a history. It ranked in the US Top 100 at the beginning of the 20th century, offering it a sense of solidity. 
 
Now, it’s revived and more loved than ever, with 4000 parents choosing it for their sons each year. Gentle but sophisticated, wild but refined, Everett could become an even more poplar choice in the future. 
 
If the sound of Everett appeals to you but the popularity doesn’t, you could consider Barrett, Truett, Beckett, Merritt, or Garnett. If its style intrigues you but you want something more unique perhaps Everest, Wilder, Patton, Roscoe, or Huxley could be a place to start.

Everett

Ezra has a lot going for it: the strength of its heroic Biblical legacy, its quirky sound, and its fresh but familiar feel. Ezra is now at its highest point ever, but its intuitive streamlined spelling and deep roots could make it a worth successor to Elijah in the Top 10 -- or even to Liam or Noah at Number 1.
 Ezra just misses being among the elite group of male names that's always been in the US Top 1000, having dipped below the cutoff in 1964 and '67. Ezra also makes the Top 100 for boys in other English-speaking countries along with the Netherlands.
 Ezra is an abbreviation for the Hebrew phrase Azaryahu, meaning "Yah helps". In the bible, Ezra led a group of fifteen hundred Israelites out of slavery in Babylon and back to Jerusalem. 
 
Other notable Ezras include poet Ezra Pound and New York Times political columnist Ezra Klein. Ezra Cornell was a founder of Western Union and co-founder of the university that bears his name and Ezra Jack Keats is a popular children's book author-illustrator. 
 Both Paul Reiser and Taylor Hanson are dads to boys named Ezra, and there are Ezras to be found in Wilkie Collins's The Moonstone and Daniel Deronda by George Eliot.
 And let's not forget the band—Better Than Ezra—along with rising actor Ezra Miller, Vampire Weekend musician Ezra Koenig or the character Ezra Fitz from Pretty Little Liars.
 As unlikely as it may seem, Ezra is also growing in popularity as a girls' name, making the girls' Top 1000 in 2018 ad still rising. About 450 baby girls were named Ezra last year, but about 8000 baby boys, which puts Ezra below our 10% minimum to be considered a unisex name.

Ezra

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.

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.
 
Felix, energetic and upbeat with a felicitous meaning, has finally transcended its negative associations to Felix The Cat and the persnickety Felix Unger. 
 
The name appears in literature as the central character in George Eliot's novel Felix Holt, the protagonist of Thomas Mann's Confessions of Felix Krull, in Thomas Hardy's Tess of the D'Urbervilles, Henry James's The Europeans, Kurt Vonnegut's Cat's Cradle, and as a member of the Volturi Guard in the Twilight series. In movies Felix has popped up in everything from several James Bond films to Spy Kids and The Hangover.
 
Gillian Anderson and Elizabeth Banks are two modern celebrities who chose Felix for their baby boys. A notable namesake is Felix Frankfurter, a long-term Supreme Court Justice.
 
Popular in the Hispanic community, Felix is also celebrating a surge abroad. Felix has been on the <a href="https://nameberry.com/popular-names">U.S. popularity list</a> for as long as records have been kept and is rapidly becoming a Nameberry fave.

Felix

If you've heard this name, it's probably from the hero of the acclaimed Julia Glass novel, Three Junes, or else the political scientist Richard Fenno. As well as a Finnish name, it's alos a Frisian diminutive from names in the Frederick family, making it is a cousin of Freddie, Fritz and Fedde. This name is so rare it's never appeared on the charts, but with its energetic O ending it might appeal if you're looking for an alternative to names like Otto and Arlo.

Fenno

Finn is a name with enormous energy and charm, that of the greatest hero of Irish mythology, Finn MacCool (aka Fionn mac Cuumhaill), an intrepid warrior with mystical supernatural powers, noted as well for his wisdom and generosity. 
 Finn was chosen by cool couple Christy Turlington and Ed Burns for their son, and also by Jane Leeves and Autumn Reeser. Played by Cory Monteith prior to his death, Finn Hudson was a prominent character on Glee.
Other up-and-comers in the same family: Finlay and Finley, Finian and Finnian, Finnegan and Finnigan, and, from Germany, Fynn.

Finn

In Italy, a common melding of two popular names, heard in the US as well.
 Giancarlo Stanton is a power-hitting right fielder for the New York Yankees. Side note: when he first joined the leagues, he went by Mike — one of his middle names is Michael — a hangover from when his schoolmates had trouble saying "Giancarlo". Another famous bearer is actor Giancarlo Esposito.

Giancarlo

Guthrie, one of the most attractive <a href="https://nameberry.com/list/428/scottish-baby-names">Scottish names</a> that's also a surname, has a particularly romantic, windswept aura, with a touch of the buckaroo thrown in.
 Guthrie's folkie quality is tied to the father and son pair of singers Woody (born Woodrow Wilson) and Arlo. Other Guthries: Guthrie McClintic, a major figure in the Broadway theatre world of the early twentieth century, and Guthrie Govan, a guitarist with Asia and other bands.

Guthrie

A glamorous surname name most famously borne by 1930s icon Jean Harlow (born Harlean Carpenter), Harlow is also the name of a town in the English county of Essex. Outside of the UK, Harlow would fit right in with contemporaries Arlo and Marlow(e).

Harlow

Hugo, the Latin form of Hugh, has more heft and energy than the original -- and of course we love names that end (or begin, for that matter) with an o. This one is especially appealing because it's backed up by lots of solid history and European style.
 Hugo is one of those names that misses by a single year ranking in the Top 1000 for its entire history. It fell off the list in 1948, the height of post-WWII pro-American fervor, before heading back up.
 Hugh has held steady in the middle of the US Top 1000 for more than 40 years now, but we predict might be headed for the kind of popularity it enjoys in the rest of the English-speaking world and many European countries.
 Hugo ranks in or near the Top 100 in countries and cultures as diverse as Sweden and Spain, France and Finland. It's also a favorite boys' name on Nameberry, usually a harbinger of future success in the US as a whole.
 In the seventh Harry Potter novel, Ron and Hermione bestow the name Hugo on their son. Hugo Strange, meanwhile, is a longtime adversary of Batman. 
 Real-life Hugos include Hugo Chavez, the late president of Venezuela, and the fashion world's Hugo Boss. In the more distant past there was the distinguished Supreme Court Justice Hugo Black.
 Trivia tidbit: The annual awards for sci-fi writing are called the Hugos, honoring early genre writer Hugo Gernsback.

Hugo

An unusual name heard in contemporary Germany, the Netherlands, and Scandinavia, it's the male version of the more familiar Inga. It's the name of a German god, and attached to German-born soap star Ingo Rademacher--the father of sons named Peanut and Pohaku Zen.

Ingo

Ivo is an unusual, catchy name with the energetic impact of all names ending in 'o'. Hardly heard in the U.S., it is used a bit more frequently in England, as is the related Ivor, a favorite of such novelists as Evelyn Waugh and P.G. Wodehouse. Ivo is currently most popular in the Netherlands.

Jasper originated as a variation of the Latin Gaspar, which ultimately derived from the Persian word ganzabara, meaning "bringer of treasure." As a given name, Jasper’s etymology is unrelated to that of the gemstone, which comes from a Semitic word meaning "speckled stone." Jasper is the usual English form for one of the Three Wise Men who brought gifts to the infant Christ according to medieval tradition and appears in the Bible as a reference to the stone itself in Revelations 4:3.
 
Jasper has a lot going for it—it's been rocketing up the ranks in the US, after long being considered a posh and charming name in England. Distinctly masculine, Jasper represents a variety of quartz—one of the few gem <a href="https://nameberry.com/boys-names">names for boys</a>—and is the first name of the great modern artist Jasper Johns. Our only caveat: Jasper is a favorite of a lot of hip parents, and has gotten even more popular since its strong appearance in the Twilight books and movies.
 Jasper has considerable literary cred as well, appearing in works by Sir Walter Scott, James Fenimore Cooper, Thackeray, and Thomas Hardy--as well as Stephenie Meyer. 
 Casper/Caspar is the German version.

Jasper

Jude is a modern star, maintaining a steady level of popularity -- but not TOO much popularity -- for more than a decade now. Thank Jude Law and the great Lennon-McCartney song "Hey Jude", double-handedly responsible for propelling Jude up the charts.
 Saint Jude was the apostle who interceded for people with problems and became the patron saint of lost causes.Kelsey Grammer has a son named Jude Gordon. Jude is occasionally used for girls (as in Martha Stewart's granddaughter)--but more often as a shortened form of Judith/Judy.
 Jude's old connections to the traitorous Judas Iscariot and Thomas Hardy's tragic Jude the Obscure have mostly faded from memory, though don't be shocked if Grandma objects to the name on these grounds.

Jude

Kiro is a rare bird: one of the <a href="https://nameberry.com/list/317/unique-baby-names">unique baby names</a> with the stylish o ending. A Macedonian name with the same root as the English name Cyril; we think it is by far the spunkier option. Reminiscent of more popular names like Arlo and Remy, Kiro is a name which wins on three fronts: it has a great meaning, is easy to pronounce, and yet guaranteed to be unique (only 21 baby boys were named Kiro in the US last year).

Kiro

Leo is a strong-yet-friendly name that was common among the Romans, used for thirteen popes, and is now at its highest point ever in the US thanks in part to Leonardo "Leo" DiCaprio.

Derived from the Latin meaning "lion", Leo is one of those names, like Luke and Finn, that many people assume must be short for something but that is authentically a complete name in its own right. That said, Leo can but short for any number of names, from Leonardo in Latinate languages to Leon and Leopold in Germanic languages. We've even heard of little girl Leonoras and Leonies called Leo: How cute is that?

Leo's simplicity makes it an international star, ranking in the Top 100 in countries as diverse as Ireland and Israel, Spain and Sweden, Austria and Australia. Leo is a truly diverse name, a perfect choice for any family crossing countries or blending cultures.
 
Leo's only real downside is its universal popularity and familiarity. If you call your child Leo, you and they will almost certainly encounter many other Leos over the years of all types and ages. Plus or minus? Or both?
 
Penelope Cruz and Javier Bardem called their son Leo, as did actress Kim Raver, NASCAR driver Jeff Gordon and Kristin Olson. 
 Famous Leos of the past include Pope Leo the Great, a number of early saints, and Leo Tolstoy, as well as Dead End Kid Gorcey, colorful baseball manager Durocher, influential gallerist Castelli and the leonine MGM icon. There have been Leos seen on everything from The West Wing to Charmed to Grey's Anatomy to Seinfeld's Uncle Leo.

Several spelling variations of this name feel stylish for either a boy or girl, including Marlo, Marlow, and Marlowe. This spelling in particular feels in line with trending Arlo.

Marlo

Milo is most commonly considered to be Germanic name derived from the Latin word miles, meaning "soldier." However, there is evidence to suggest it also may have independently spawned from the Slavic root milu, meaning "merciful." Milo predates brother name Miles, a variation that evolved when the name immigrated to the British Isles in the Middle Ages. Mylo is an alternate spelling.
 
Milo has long been a favorite <a href="https://nameberry.com/boys-names">boys' name</a> on Nameberry, also getting some well-deserved appreciation in the wider world. Milo combines the strength of the ancient Greek Olympic wrestler of that name—a six-time winner of the Olympic games—with the debonair charm of a WWII RAF pilot.
 More recently, Milo has been associated with the dashing Milo Ventimiglia of This Is Us fame, and it has also been the name of characters in books Catch-22 and The Phantom Tollbooth, and on screen in Milo and Otis, Alias, and Atlantis: The Lost Empire.
 Ricki Lake, Camryn Manheim, Sherry Stringfield, Liv Tyler, Craig Ferguson, and Alyssa Milano are six celebrity parents who share our enthusiasm for Milo, as do many Nameberry baby namers.
 Milo is often heard in Ireland. Milo O'Shea was a renowned Irish character actor.

Milo

Miro comes from the Slavic root word mir meaning "peace, world". Sometimes Miro is used as a diminutive of longer names like Miroslav or Vladimir, but it can also be given as a name in its own right. Miro has a wonderful meaning and fits right in with trendy names Arlo and Milo, as well as being an artistic honor name for Spanish painter and sculptor Joan Miró.

 There is also an indigenous Australian name Miro. In the Nyungar language, a miro is a type of spear-thrower which propels the aim of a spear. Miro is also a Maori name, after an evergreen tree which is native to New Zealand.

Miro

Orlo is a name nobody ever heard of until the surprise popularity of the unrelated but similar-sounding Arlo. If Arlo can be a hit, why not Orlo? Why not indeed.
Some sources identify Orlo not as a diminutive of Orlando but as a Hebrew name drawn from the Orl- prefix, a la Orli, which means light.

Orlo

Orso

Oscar is one of the most stylish Old Man Names of our era. While it's softened slightly in popularity over the past 20 years, that may be considered a very good thing.
 
In the nineties and the aughties, Oscar looked to be one of the grandpa names heading straight for the top of the charts, ala Elijah or Theodore. But instead of rising into the Top 100, Oscar has settled into that comfortable place between being too far in or out.
 
Oscar has Irish and Norse roots—Norse Oscar comes from the Old English Osgar, a variation of the Old Norse name Ásgeirr. The Irish form was derived from the Gaelic elements os, meaning "deer," and car, "loving." In Irish legend, Oscar was one of the mightiest warriors of his generation, the son of Ossian and the grandson of Finn Mac Cumhaill (MacCool).
 
Oscar also has remarkable international versatility. In addition to being a top name in Sweden, where it has royal connection, Oscar ranks high on popularity lists in all the English-speaking countries as well as in France, Spain, Germany, the Netherlands, and other European and Latin American countries.
 
Actors Hugh Jackman and Gillian Anderson chose Oscar for their sons.Famous Oscars include Wilde (whose given name was Fingal), Isaac, Madison, Hammerstein, Peterson, de la Renta, the Academy Award, and the Grouch.

Oscar

Oslo, the capital city of Norway, makes for an intriguing new place name, especially with its bookended O's, as in Otto. One Berry has already used it and we predict others will follow.

Oslo

Otho

Otis has real appeal for parents attracted to its catchy O initial and combination of strength and spunk. The appealing hero of the British TV show Sex Education has done much to propel Otis into the forefront of cool names.
 Otis originally came into use as a tribute to the Revolutionary hero James Otis, and would be familiar to kids via the Disney film The Adventures of Milo and Otis. 
 Though well used at the turn of the last century, Otis was off the charts for two decades from 1995 to 2014, and now sounds like a fresh choice. Tobey Maguire used the name back in 2009. More recently, and possibly contributing to Otis's return to the Top 1000 in 2015, Olivia Wilde and Jason Sudeikis gave the name to their son.

Otis

Otto is cool again. Long a quintessential Old Man Name, Otto has been promoted to trending darling of adventurous baby namers. 
 Like most <a href="https://nameberry.com/baby-names/160/german-names">German names</a>, Otto fell out of favor during and after the two World Wars – it had been a Top 100 name in the years preceding. Off the Top 1000 from the mid-1970s until 2011, Otto is now headed straight uphill.
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There were some distinguished Ottos before the imperial image of Prussian Otto von Bismarck colored the name. Otto the Great is generally considered the founder of the Holy Roman Empire and there were several German and Austrian royals with the name. 

 Otto Frank was the father of Anne Frank, the young Jewish girl who wrote her famous diary during her family's years in hiding from the Nazis during World War II. She was killed in Bergen-Belsen concentration camp in 1945 and her father Otto typed and edited the diary himself to prepare it for publication. 

 Otto Hightower is a character in the Game of Thrones universe, played by Rhys Ifans in the HBO prequel House of the Dragon.

 Feminine forms of Otto include Ottoline, Ottilie, Odilia and Odette, all fashionable in the UK along with Otto itself.

Otto

Pascoe was popular in medieval times and is definitely deserving of revival, especially for a child born in the Easter season. Other spellings are Pasco and Pascow.

Pascoe

Borne by early enslaved people in America and the Caribbean who were born on Thursday. This follows the traditional West African day naming tradition.

Quao

Fairly popular a hundred years ago but out of sight now, the quirky Roscoe deserves a place on every adventurous baby-namer's long list. It joins Rufus, Roman, Remy, Romulus, and Ray as one of the R names that sound fresh again after too many years of Robert, Richard, and Ronald.
Originally a place and surname, Roscoe had its glory days in the 1880s, when it reached as high as Number 138, then gradually declined, possibly damaged by the scandals surrounding silent star Roscoe "Fatty" Arbuckle, and then the hillbilly image it acquired thanks to Sheriff Coltrane on The Dukes of Hazzard. 
Roscoe has been out of the Top 1000 since 1978 but feels very much in step with the trending o-ending boy names popular now, such as Milo, Hugo, and Otto.
Trivia tidbit: The R in Edward R. Murrow stands for Roscoe; the distinguished newsman's first name was really Egbert.

Roscoe

Sleek and smart, with a hint of mystique about it, Silas is a recent addition to the US Top 100. Both mythological and Biblical in origin, Silas joins the ranks of Isaiah, Atlas, Elias, and Sebastian: polished and contemporary feeling names with plenty of history. 
The origins of Silas are debated or perhaps multiple. On one hand, it could a simplified form of the Latin Silvanus, meaning “of the forest.” 
In Roman mythology, Silvanus was the god of trees, and his name was originally bestowed on those who lived in forested areas or who worked with wood. This could bring either a hardy, outdoorsy ruggedness to the name or something more mystical, dark, and intriguing. 
On the other hand, Silas could be a Greek form of the Aramaic Seila or of the Hebrew Saul, meaning “asked for” or “prayed for”. 
Its Biblical roots can then be traced to either Saul, the first King of Israel, or to a companion of Paul the Apostle. Later venerated as a saint, Silas was a leading member of the early Christian community, who accompanied Paul on his second missionary journey. 
Given as an English name from the 17th century onwards, Silas has a rich literary history. Notably used by George Eliot in Silas Marner and by Dan Brown in The Da Vinci Code, Sheridan Le Fanu, Charles Dickens, Robert Frost, Willaim D. Howell, Neil Gaiman, and Mark Twain have also featured a Silas in their work. 
A longstanding favorite and <a href=“https://nameberry.com/popular-names/nameberry/boys”>one of the most searched names on Nameberry</a>, in the ‘real world’, Silas had mostly lingered towards the lower end of the US Top 1000 in the 20th century. 
It did gain some attention in the Netherlands, Denmark, and Switzerland in the 2000’s, but it took until the 2010’s for it to make significant moves in the US. Now, it is trending upwards and given to nearly 4000 babies each year. 
Based on its Nameberry popularity, its status as ancient but still fresh, and its similarity in sound or style to popular Elijah, Isaac, Lucas, and Samuel, Silas could continue to climb the charts. 
If you love it, but don’t want to be part of the crowd, you could consider one of Silas’s relatives, such as Sylvan, Sylvester, or Sylvius; alternatively, Linus, Rufus, Caius, Laurence, or Ozias might appeal as less popular options.

Silas

See the popularity graph below for the name Theo? It's been heading straight uphill since 2010, when it hopped back onto the Top 1000 after a 60+ year absence.
 
Now in the Top 100 in this form, Theo's popularity is even wider given its common use as a nickname for Theodore, which made the Top 10 for the first time in 2022. This might be the generation of Theos.
 
Theo's newfound popularity extends far beyond the US and the rest of the English-speaking world. It's currently a Top 100 name in Germany, Brazil, Scandinavia, and beyond, as well as being a popular choice for pets.
 Theo first made an impact as the name of the only son on "The Cosby Show," earlier it was associated with Vincent van Gogh's supportive brother Theo.

Theo

Cool bearlike option, though Orson might be easier to embrace. 

Urso

Vano

The o ending and the positive meaning in many languages makes this a winner, and with the feminine Vera making a surprise return, and the new love for the letter 'V', this becomes a name that has definite possibilities. 
 A geographical tie is to Vero Beach in Florida, former home of the Dodgers training camp.

Vero

Its jaunty o-ending makes this name more appealing than most of its Germanic brothers, and we hope we're beyond the constant response to his name being "Where's Waldo?" The weighty reputation of writer and philosopher Ralph Waldo Emerson adds a measure of backbone to the name.
 In tribute to Ralph Waldo, many babies were given those two names, including Ralph (Waldo) Ellison, author of Invisible Man.
 In popular culture, the young Robert Redford played the dashing titular character in The Great Waldo Pepper and Waldo Lydecker was a key character in the haunting classic film Laura.

Waldo

With an X at the start and an O at the end, Xeno is undeniably modern and cool. If you're looking for a derivation, it could come from either the Greek male name Xenon, meaning "foreigner"; of from Zeno, a latinized form of the Greek name Zenon, meaning "dedicated to Zeus".

Xeno

Yago

Zeno, the name of two ancient philosophers, has a muscular dynamism that's lightened by its cheerful final vowel, resulting in a kind of offbeat sci-fi feel. Zeno of Citium was the founder of the Stoic school of thought, Zeno of Elea was another early, original Greek thinker, famed for his Paradoxes.
 Zeno Cosini is the protagonist of the Italo Svevo novel Confessions of Zeno.

Zeno

MiaLen's list "Alternatives to Arlo" of 76 great name ideas: Abel - Zeno!

Alternatives to Arlo

Airy Arlo is a favorite around the globe, ranking in the top 100 for England, Scotland, Ireland, Australia, and New Zealand, and 167 in the US. Here are some alternatives!