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

This cute masculine nickname -- with connections to princes, Hogwarts headmasters and the Manzo family of "Real Housewives of New Jersey" -- almost has enough heft to stand on its own. But all of its precursor names have merit.

Albie

Alfie is a Top 20 name throughout the British Isles, where retro nickname names are mega-popular, but it hasn't really been picked up in the US yet. Both Alfie and rising star Archie are spunky nickname possibilities with a bit of an English accent.

 Thanks to some louche fictional characters, Alfie has long had a lovable rogue image. First there was the Michael Caine character in the 1966 eponymous film, followed by a 2004 remake starring Jude Law. In Britain, the name was given a big boost by the Alfie Moon character in the long-running soap, EastEnders. 

There have been several Alfie songs as well, most recently one by Lily Allen written for her little brother.

Alfie

With many British names invading the Yankee name pool, the sophisticated Alistair could and should be part of the next wave. It debuted in the US Top 1000 in 2016. You have a triple choice with this name--the British spell it Alistair or Alastair, while the Scots prefer Alasdair--but they're all suave Gaelic versions of Alexander. Adopted by the lowland Scots by the seventeenth century, the name didn't become popular outside Scotland and Ireland until the twentieth century.
 Both Andrew Lloyd-Weber and Rod Stewart chose the Alastair spelling for their sons' names.

Alistair

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

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

Benji is undeniably cute, much in the way of a — yes, an adorable movie mutt. Ben is the handsome traditional short form of Benjamin, but Benji makes a more unexpected nickname

Benji

Cute kid with freckles, bouncing a Spalding ball. Cool couple Helena Bonham Carter and Tim Burton put the name Billy Burton on their son's birth certificate. While the classic William, name of the future king of England, may in fact be German, the nickname Billy along with such other classic short forms as Jim and Joe are authentically <a href="https://nameberry.com/baby-names/502/english-names-for-boys">English names for boys</a>.

Billy

Baseball commissioner Bowie Kuhn put this name in play as a first name, but David Bowie (born with the considerably less marketable moniker of David Robert Jones) dyed it blond and gave it charisma. He changed his surname in 1965 to avoid confusion with the then popular Davy Jones of The Monkees, and especially since his death, his admirers have seen it as an increasingly viable baby name namesake. It is now Number 453 on Nameberry, and actor Jackson Rathbone even used it for his daughter.The name Bowie reputedly came about as a reference to the American hero of the Alamo, Jim Bowie. 
 Bowie successfully combines all these positive elements--Gaelic charm, a Western drawl and musical cred.

Bowie

An English surname name, Bradley has a long history, dating way back to at least 1086, but as a first name it actually succeeded in the US before it reached England--though Dickens used it in his novel Our Mutual Friend. Bradley Cooper is one namesake.

Bradley

This ancient name, also spelled Caspar, is finally shedding its ghostly image and moving into the 21st century. Popular in the Netherlands and Scandinavia, where it's sometimes shortened to Cas, Casper could ride the style coattails of cousin Jasper.
Casper was one of the Three Magi who brought gifts to the infant Jesus along with Melchior and Balthasar.
 Some notable Caspers are one-time Secretary of Defense Casper Weinberger (called Cap) and actor Casper Van Dien, whose son is Casper Robert Van Dien III. Claudia Schiffer and Jenny Frost both used the names for their boys, while Jason Lee did a gender switch when he called his daughter Casper (sister of Pilot Inspektor).
 Casper Goodwood was the persistent suitor of the main character, Isabel Archer, in Henry James's novel A Portrait of a Lady.

Casper

Cole -- a short name that embodies a lot of richness and depth -- has long been associated with the great songwriter Cole Porter. It's quite popular in Scotland.
 Old King Cole -- which refers to a real British king -- is familiar to all kids. Cole was the name of the child in The Sixth Sense and was also the name of -- sorry -- the notorious outlaw Cole Younger, who was born Thomas Coleman.

Cole

Converting Damian to Damien – or Julian to Julien or Lucian to Lucien – adds a certain je ne sais quoi to names. But most people in English speaking areas will still pronounce this the same as the -an ending form. The French pronunciation is more like "dah-mee-u(n)".

Damien

Davey

The jazzy, ultra-cool Dexter, like most names with an "x," has a lot of energy and dynamism. Over the years, it's been attached to a number of diverse real and fictional personalities—C. K. Dexter Haven, the witty Cary Grant character in The Philadelphia Story; Dexter Green, the protagonist of the F. Scott Fitzgerald story "Winter Dreams"; great jazz tenor saxophonist Dexter Gordon; the boy-genius protagonist of cartoon Dexter's Laboratory; and the most recent TV series Dexter based on the books by Jeff Lindsay, whose lead happens to be a genial but sociopathic serial killer.
 Dexter was chosen by hip musical couple Diana Krall and Elvis Costello for one of their twin boys, and by singer Charlotte Church.
 Dex is an equally appealing nickname, now sometimes used on its own.

Dexter

With its sharp, succinct sounds and cool, laidback style, Eli is a popular choice among parents today. Compact and punchy, it is a Biblical name with plenty of charm. 
Derived from the Hebrew ’aly, the name Eli means “high” or “ascended.” In the Old Testament, Eli was a high priest of the Israelites, who trained and gave guidance to the prophet Samuel. 
While the Biblical Eli suffered an unhappy end due to his sons’ misdeeds, his name hasn’t shared the same fate. Used since the 17th century, Eli has never been out of the US Top 1000. It has featured in the Top 100 for the last decade, and is currently popular in the UK, Australia, New Zealand, and The Netherlands too. 
Eli is also used as a shortened form of Elijah, Elias, Eliezer, or even Elliot and in some Scandinavian countries, is it used as a feminine name, most often as a nickname for Elisabet or Elin. With its unisex potential and its longer forms ranking highly, Eli might feel more popular than it actually is. 
Notable namesakes include Eli Whitney, the inventor of the cotton gin, Eli Long, a Civil War general, and Eli Roth, a film director, screenwriter, and actor. Enjoyed by the general public and celebrities alike, Eli has been chosen by CNN anchor Campbell Brown, SNL alum Rachel Dratch, and actor Kevin Weisman. 
Spirited but solid, no-fuss Eli is given to over 4000 boys each year, so you wouldn’t be alone in loving the name. If you don’t want your baby to have share however, you could consider other Biblical E names such as Eben, Elim, Enosh, or Eran, or perhaps other 3 letter gems, like Ira, Ari, Jem, Nye, or Ivo.

The Top 10 boys' name Elijah is derived from the Hebrew name Eliyahu, composed of the elements ’el and yah, both of which refer to God. In the Old Testament, Elijah was the prophet who went to heaven in a chariot of fire, a story sure to inspire any young Elijah.
 Like many biblical patriarch names, Elijah was on a long downward slide from the 19th century until the late 1960s, when it reversed course and headed uphill. Elijah was rejuvenated when Cher and Greg Allman bestowed it on their son Elijah Blue in 1976, and got another shot of youth serum via young actor Elijah Wood.
 Among other celebrities who have chosen Elijah for their boys are Donnie Wahlberg, James Spader, Tracy Nelson, Wynonna Judd and Bono (who followed it with <a href="https://nameberry.com/list/673/middle-names">middle names</a> Bob Patricus Guggi G.).
 Elijah figures in the Jewish, Christian and Muslim religions. There are numerous songs containing the name, and Elijah is also a character in many films and books—including Charles Dickens's Martin Chuzzlewit.
 Elias is the related, Greek variation of Elijah, also quite popular. Eli is a separate, unrelated name, though sometimes used as a short form of both Elijah and Elias.

Elijah

When the King was alive, and for years afterwards, few people (except Declan McManus who became Elvis Costello) dared use his singular name, but now it's very much up for grabs. 
 The name Elvis is connected to the Irish Ailbhe, and the Irish saint of that name is also known as Elvis of Munster. There is also evidence that the name may originate from the old English Helwise, which in turn led to the surname Elwes. 
Elvis was the middle name of the singer's dad, Vernon. Anthony Perkins, a big Elvis fan, gave the name to his now grown son in 1976. Other aficionados, such as Cindy Crawford, have opted for the surname Presley.

Elvis

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

James is one of the classic Anglo-Saxon names, a stalwart through the ages that is more popular—and yes, stylish—than ever today. It recently came out Number 1 in a poll of America's favorite boys' baby names, and is the most common male name, counting people of all ages, in the US.
 James, which reentered the Top 5 in 2016, is a current favorite among fashionable parents looking for a baby name that has both style and substance. Like Henry and Theodore, it manages to combine these two stellar qualities.
 
An English derivation of the Hebrew name Jacob, James is biblical (the name of two apostles in the New Testament), royal (kings of both England and Scotland), and presidential (with more U.S. Chief Executives -- six -- than any other name). The name James is also shared by countless great writers and entertainers.
 
There are fewer Jimmys, Jimbos or even Jamies these days; the most fashionable form of the name is James itself. Several stylish celebrities have chosen it in recent years for their sons, including Sarah Jessica Parker and Matthew Broderick, Liz Phair, Colin Farrell and Isaac Hanson. Brendan Fehr thought out of the box and named his daughter James, which has now become a fashionable middle names for baby girls..
 James has some interesting foreign variations: Diego and Jaime (Spanish), Jacques (French), Giacomo (Italian), Hamish (Scottish), Jaako (Finnish), Seamus (Irish), Jaap (Dutch) and Jago (Cornish).
 Along with being one of the most popular first names in the US, James is also one of the <a href="https://nameberry.com/blog/top-last-names-in-the-us">most common American last names </a>.

James

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

Jeremiah is a solid Old Testament prophet name that has gradually taken the place of the now dated Jeremy, Gerard and Gerald, joining other currently popular biblical 'iah' names like Josiah and Isaiah. In the Bible Jeremiah is a famous prophet whose story is recorded in the book named after him.
 Dickens used the name in two of his novels--Little Dorrit and A Tale of Two Cities-- and other fictional Jeremiahs have been spotted in such movies and TV shows as Oz, Zoey101 and The Princess Diaries. Leonard Bernstein composed a work called Jeremiah Symphony.
 Caveats: Once-logical nickname Jerry sounds like the family dentist, and some may make the Jeremiah bullfrog association.
 A related, more unusual biblical option: Jeriah.

Jeremiah

This one-time trendy form of Jeremiah hovered just outside the Top 25 throughout the 1970s and 80s.
 Scout's brother Jem in To Kill a Mockingbird was christened Jeremy Atticus Finch, Jem being a very appealing nickname. Jeremy Piven and Jeremy Renner are two current bearers.

Jeremy

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

The extra 'T' makes this nickname name a little more substantial.

Kitt

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.

Luce

Lyell

Mason is an occupational surname that ranked among the Top 10 name for boys throughout the 2010s, after its choice as one of the first Kardashian baby names.
Part of its appeal is as a fresher-sounding replacement for dad name Jason. It's also one of the leaders of the Jackson-Hudson-Grayson-Kayson trend.
Along with Kourtney Kardashian and Scott Dissick, Mason was chosen for their sons by several other celebrities, including Cuba Gooding, Jr., Melissa Joan Hart and Kevin Richardson (as well as by Kelsey Grammer for his daughter).
And there were two cute TV werewolves named Mason: Mason Greyback on Wizards of Waverly Place and Mason Lockwood on Vampire Diaries--a far cry from the name's wholesome image.

Mason

A happy medium between the weighty Maximilian and the laid-back Max, Maxwell is one of the most classic and attractive <a href="https://nameberry.com/list/428/scottish-baby-names">Scottish names</a>. Early influences on the name's revival include Maxwell Smart of the television show, and then movie, Get Smart, and the Beatles song about Maxwell's Silver Hammer.
 Lance Armstrong chose it for his son, but there was a sharp and unexpected gender switch when both Jessica Simpson and Lindsay Sloane both chose it for their daughters. Still, in the US baby boy Maxwells outnumber baby girls 50 to 1.

Maxwell

Miller is an up-and-coming choice in the stylish occupational genre, among the fastest-rising names for both boys and girls in the US in 2023.
 
Miller is also among the <a href="https://nameberry.com/blog/top-last-names-in-the-us">most common last names in the US</a>.
 Miller was chosen as a baby name by Stella McCartney, Melissa Etheridge, and by Tea Leoni and David Duchovny. There are innumerable Miller namesakes, including writers Arthur and Henry, and entertainers Dennis, Glenn, Jonny Lee, Larry, Mitch, Roger, Steve, and Sienna. And in fiction, there's Henry James's heroine, Daisy Miller.

Miller

Russel

One of the few ancient Roman names that doesn't end in us, the rarely heard Tarquin has a decidedly creative, even dramatic flair, which could appeal to the parent looking for a strikingly original name. Sir Laurence Olivier used it for his oldest child, who was named Simon Tarquin but called by his middle name.
 As Tarquinius, it was borne by two early kings of Rome.
 Tarquin has some literary cred as well, appearing in Shakespeare's poem The Rape of Lucrece (referring to a dark stain on the name), as Tarquin Blackwood in Anne Rice's The Vampire Chronicles series and as Tarquin Cleath-Stuart in the Shopaholic series by Sophie Kinsella.

Tarquin

A strong single-syllable surname with a joyful meaning, Tate is finding a place on more and more birth certificates.
 Former Spice Girl Emma Bunton named her second son Tate Lee.
 Tate also has a cultural vibe via the Tate and Tate Modern museums in London, named for philanthropist Henry Tate. Actor Tate Donovan is a prominent current bearer.

Tate

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

A solid classic with plenty of history, Thomas strikes the balance between strength and gentleness. A favorite in the UK, a staple in France, and Australia, and never absent from the US Top 100, Thomas feels like a safe bet and a name that fits into any era. 
The Greek form of the Aramaic name Ta’oma, Thomas means “twin.” It came about in the Bible because there were too many apostles called Judas, and so, Thomas became the “twin”, to reflect his close brotherhood with Jesus. 
Known as “Doubting Thomas” due to his initial skepticism of Jesus’s resurrection, he went on to become a martyr, and there was no need to doubt Thomas’s potential as a given name. 
Brought into common usage by the Normans, it was then always among the 5 most common English names for boys at any point between the 13th and 19th century. 
While it has fallen down the US charts in recent years, it remains a familiar and trusted choice. Given to over 6000 boys every year, it has made a steady climb back into the Top 50. 
Across the pond in the UK, both Thomas and Tommy make the Top 30, while Tom, Tommy-Lee and Tommie have made their mark in the Top 1000. 
As a well-established classic, Thomas naturally comes with plenty of noteworthy namesakes. “Thomas the Tank Engine” might appeal to you kids, but there’s also the theologian, Sir Thomas Aquinas, the cardinal Thomas Wolsey, the Founding Father, Thomas Jefferson. the philosopher, Thomas Hobbes, and the writer, Thomas Hardy. 
More recent namesakes for those who aren’t into history include actors Tom Hardy, Tom Cruise, and Tom Hiddleston, singers Tom Parker and Tom Fletcher, Olympic diver Tom Daley, and Thomas Sanders, of YouTube fame. 
A timeless all-rounder, Thomas comes with the intuitive nicknames, Tommy and Tom, which feel sweet for a child but not too cutesy for a grown-up. For more unexpected options, you could try the nature-inspired Moss or Scottish Tam. 
Unlikely to go out of style anytime soon, Thomas is a refined but approachable choice. If the popularity does give you pause, however, you could try the surname-inspired Thompson, or an <a href=“https://nameberry.com/list/492/100-classic-boys-names--below-the-top-1000/all”> underused classic</a> like Marius, Rufus, or Phinneas. 
Alternatively, there is a wealth of interesting variants to ponder, from Italian Tommaso and Scottish Tavish to Croatian Tomo– and for girls, there’s Thomasina, Tomine and Tamsin.

Thomas

A surprising number of parents choose to put the nickname Tommy on their son's birth certificate rather than the more traditional Thomas. Perhaps even more surprising is thE fact that Tommy has never been off the United States popularity charts. More recently, however, the name has been trending downward.

Tommy

Xavier originated is use as a given name after Saint Francis Xavier, cofounder of the Jesuit order, who got his name from the Spanish-Basque village where he was born. His birthplace was Javier, the name of which was derived from the Basque place name Etxeberria, meaning "castle" or "new house." 
 
Many Americans pronounce the initial X, as in ex-ZAY-vee-er, but it's equally accepted to pronounce the name ZAY-vee-er, closer to the French pronunciation.
 
Today's parents are beginning to reassess Xavier, and it's as popular now as it's ever been.
Xavier is one of the only X names most people know and use, often as a middle name following Francis, as in Saint Francis Xavier.
 
Xavier was chosen for their sons by Donnie Wahlberg and Tilda Swinton—as well as for the middle name of Larenz Tate's son Miles and Kim Fields' Quincy. 
 
The Spanish classic Javier, pronounced HAH-vee-ay, has come into greater prominence via Oscar-winning Javier Bardem.
 
Trivia note: the X-men comics introduced the kree8if spelling Xzavier.

Xavier

This distinguished name still feels a bit ancient, but with the rise of such former graybeards as Jeremiah and Elijah, it also sounds child-friendly again, as does the Latin-Greek form Zacharias. 
 Zachariah is a name that was in fairly regular use by the Puritans of the sixteenth century, then was eventually and completely overtaken by the more modern sounding Zachary. But strange as it may seem, Zachariah and Zacharias now seem more au courant than Zachary (even though that name remains more popular).
 In the Bible, spelled Zechariah, it is the name of about 30 different personages, one of whom gave his name to the book of Zechariah.
 Zarachiah Hobson is a character in the Thackeray novel, The Newcomes. 
 Zakkai, a Hebrew abbreviation of Zachariah, is another interesting option.

Zachariah

TabithaTuppence's list "Best Boy Names - For Girls" of 39 great name ideas: Abel - Zachariah!

Best Boy Names - For Girls

A list of names that are traditionally masculine, but would be great for girls - hopefully some of these will transition into the “unisex” category in coming years.