Jack may have fallen from its Number 1 place in England, but in the US it's as popular as it was at its height in the 1920s and 1930s. A durable, cheery, everyman form of John, Jack ranks as one of the most popular <a href="https://nameberry.com/search/boys-names/j">boy names starting with J</a>. 
Jack is a derivative of John that originated in medieval England. The name went from John to Johnkin to Jankin to Jackin to Jack. The name was so common in the Middle Ages that Jack became a generic term for a man. 
 
Jack is familiar to all from earliest childhood via Jack and Jill, Jack Sprat, Jack and the Beanstalk and Little Jack Horner et al. It is still a recent favorite for novel, TV and movie characters. 
 
Jack is at the top of the charts in Ireland and Scotland, and also ranks highly in Germany, Sweden, the Netherlands, and Belgium.
 
The jaunty Scottish version is Jock.

Jack

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

The cool form of James in the 1970s and '80s for both sexes. Still a more stylish short form than Jimmy, though many parents will want to call James by his entire, not-very-long name.

In the UK, and particularly in Scotland, Jamie remains a firm favorite for boys, both as a full name and a nickname.

Jamie

Jamillie

No, we don't consider Jane too plain. In fact, for a venerable and short one-syllable name, we think it packs a surprising amount of punch, as compared to the related Jean and Joan.
 A very old name, Jane has been around since Tudor times, in this country moving in and out of fashion. Jane was once so common that it became generic—as in Jane Doe and G.I. Jane—then spent a considerable time as the back end of such smooshes as Maryjane, Bettyjane, and Sarajane.
 We think it's time for a fresh look at Jane—and not only in the middle place. Just think of all the awesome Janes of the past, both real and fictive—from Austen to Addams to Eyre to Fonda. 
 Jimmy Kimmel recently named his baby girl Jane.

Jane

Jason, the Number 3 name for the entire decade of the 1970s -- thus the title of our original baby-naming book, Beyond Jennifer & Jason -- is more likely to be dad's name now than baby's, but it's still a widely used name. 
 
Jason's megapopularity definitely launched stylish newcomers ranging from Jacob to Mason to Jackson. It's easy to forget, given its trendiness, that Jason is actually one of the classic <a href="https://nameberry.com/baby-names/508/greek-names-for-boys">Greek names for boys</a>.
 In Greek myth, Jason is the leader of the Argonauts who went in search of the Golden Fleece, while in the Bible he was an early Christian who was hospitable to St. Paul.
Jason figures in the novels of William Faulkner, especially in The Sound and the Fury. Famous Jasons include Jason Bateman, Jason Segal, and Jason Kidd.

Jason

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

One of the boys' names newly appropriated for girls -- either on its own, as a pet form of any J name, or as a singular middle name. 

Jeannot

Jedidiah, an Old Testament name with a touch of Gunsmoke-era western panache, is right in line to be revived along with the other biblical -iah names.
 Jedidiah was the name given by the prophet Nathan to King Solomon in the Old Testament. An inspiration to hiking enthusiasts might be the intrepid explorer and trailblazer Jedidiah Strong Smith.
 Jed is the inevitable nickname, which last ranked on the US popularity charts in 1989.

Jedidiah

This name of the ten-year-old boy in the much loved and acclaimed modern classic To Kill a Mockingbird could find favor along with that of the character's sister, Scout.

Jenna was first noted on the 1980s TV series Dallas, later associated with one of the First Twin Daughters. Jenna is still being used, but no longer feels much fresher than Jennifer. You can also spell it Jena, but then many people will pronounce it jeen-a, as in Gina.

Jenna

Jentry is an upwardly-striving word name that's gaining ground for girls as a new spin on Jennifer or Jenna. If classy is what you're after, a name with a genuine pedigree would serve you better. Others spellings -- Jentri, Jentree, Jentreigh -- abound, presumably for parents who want to use the short form Jen or like Gentry but prefer <a href="https://nameberry.com/search/girls-names/j">girl names starting with J</a>..

Jentry

Jethro, though the biblical father-in-law of Moses, has suffered for a long time from a Beverly Hillbilly image, but some really adventurous parents might consider updating and urbanizing it and transitioning it into the hip o-ending category. 
 The 60s rock group Jethro Tull was named for an eighteenth century British agricultural reformer and inventor.

Jethro

Although this is a legitimate name, most people would associate it with a line of Volkswagens -- you'd be better off choosing a Mercedes. 

Jetta

Many popular Dutch short forms are drawn from the middle or end of their proper name: Sanne from Susanne, Bas from Sebastian. Jette could be from a name like Henriette or Mariette.

Jette

This spelling of Jillian is now much more popular than the original, maybe because the G version invites pronunciation problems. 

Jillian

Jillie

Jinny

Joan was the perfect name choice for one of the leading characters on Mad Men, being a quintessential girls' name of the period. A Top 10 name in the 30s, a Top 50 name from the 40s through the early 60s, it was the fifth most popular name in the country for three years running and ranks as one of the most <a href="/list/653/100-most-common-names-for-girls">common names for girls</a> in the 20th century. But alas, Joan hasn't even appeared in the Top 1000 for a dozen years, and these days it's primarily associated with Joans of the generation of Joan Crawford, Joan Collins and Joan Rivers--just a few of the noted Joans whose ranks also include the singers Joan Sutherland, Joan Baez, Joan Armatrading and Joan Jett. But it's possible that modern parents who are reviving Jane might move on to Joan, inspired by Joan Hollaway Harris.
 The first English bearer of the name was Henry II's daughter, Jhone, but the modern spelling was soon established, which is why Saint Jeanne d'Arc was translated as Joan, making her the most illustrious wearer of the name. By Shakespeare's time, Joan had become so overused that it was ripe for replacement by the newly coined Jane, the reverse of what happened in twentieth-century America.
 Some livelier foreign versions of Joan include Giovanna, Siobhan, Ione and Juana.

Joan

Jocelyn has gotten new life and popularity as a result of the current passion for lyn endings. Though it was a male name in medieval times, now Jocelyn couldn't sound more softly feminine.
 John Galsworthy's 1989 novel Jocelyn is part of his Forsyte Saga. Singer Joss Stone's birth name was Jocelyn.
 Jocelyn would make a pretty namesake name to honor a Grandma Joyce.

Jocelyn

The Jodie spelling might be even more obscure, at this point, than the fading original, except actresses Jodie Foster and Jodie Sweetin have kept it in the public eye.

Jodie

In the Old Testament, Joel was one of King David's 'mighty men' and the name was taken up by the Puritans of the sixteenth century. In the mid 1960s, Joel entered the Top 100, and stayed there for about twenty years, as parents tried to jazz up and formalize old standby Joe by reviving this biblical name.
 Current notable bearers include entertainer Joel Grey, half of the filmmaking Coen brothers, musician Joel Madden, and TV's Joel McHale. Joel Chandler Harris created Uncle Remus.

Joel

King Joffrey Baratheon, the petulant biological son of siblings Cersei and Jaime Lannisters, is perhaps the most notorious villain in the entire Game of Thrones canon. His name is practically a byword for sadism among fans of the show and George R.R. Martin's books. As such, we think it's probably a name best avoided IRL.

Joffrey

Johanna is the version of this name used in Holland, Germany, and Scandinavia. The extra h makes Johanna a slightly more dignified version of Joanna. 
 A notable namesake is the author of Heidi, Johanna Spyri. There are Johannas in Sweeney Todd, The Hunger Games, and the Bob Dylan song, "Visions of Johanna."

Johanna

John reigned as the most popular of all boys' Christian names for 400 years, from the time the first Crusaders carried it back to Britain until the 1950s. Then American baby namers finally seemed to tire of this straight-arrow, almost anonymous John Doe of names, replacing it with fancier forms like Jonathan and the imported Sean and Ian.
 
John is an English derivative of the Hebrew name Yochanan via the Latin name Iohannes, itself coming from the Greek Ioannes. John was a key name in early Christianity, borne by John the Baptist, John the Apostle and John the Evangelist, plus 84 saints and 23 popes, as well as kings and countless other illustrious notables. Contrary to popular belief, the names John and Jonathan are unrelated, the latter being an elaboration of Nathan.
 
Because many of today's baby Johns get their names for familial rather than stylistic reasons, John isn't as ubiquitous as it once was. For modern parents, the nickname Jack or an international form like Gianni feels much fresher. But John is still one of the Top 10 <a href="https://nameberry.com/search/boys-names/j">boy names starting with J</a> of all time.
 
The international versions of John are perennial classics in their own cultures: the French Jean, the Irish Sean, the Scottish Ian, the Welsh Evan and Ewan, the Italian Giovanni, and Gianni the Spanish Juan, the German Johann/Johannes, the Slavic Jan, the Russian Ivan, and on and on.
 
Celebrities who have gone with the timeless John include Michelle Pfeiffer, Bono, Johnny Depp, Lauryn Hill, Bridget Moynahan, and Rob Lowe.
 
Jon may be an abbreviated spelling of John or a short form of Jonathan.

John

Galsworthy used this for "The Forsyte Saga," but in modern real life Julian would work better.

Jolyon

Jorah, a Biblical name with a lovely nature-related meaning, might make a fresher alternative to the overused Jordan. It's similar to the feminine Nora, Cora, and Laura, but depending on your viewpoint, that may be an advantage. Jorah Mormont, often called Jorah the Andal, is a major character in HBO's Game of Thrones, marked by his loyalty to the woman he considers the rightful Queen of Westeros, Daenerys Targaryen.

Jorah

A feminization used more before Jordan joined the girls' camp. 

Jordana

Joretta

Josephine, with its large measure of class and character and a gently offbeat quality, has been on a gentle uphill climb in the US for over 30 years, now ranking in the Top 100. With an intriguing number of vivacious nicknames, from Jo to Josie to Fifi to Posy, Josephine is a Nameberry favorite.
 
Josephine is the feminine form of Joseph, a name ultimately derived from the Hebrew Yosef, meaning "Jehovah increases." In French it has an accent over the first E, which was omitted in the English, German, and Dutch translations of the name. Empress Joséphine du Beauharnais was born Marie-Josephe-Rose, but called Josephine by her husband, Napolean Bonaparte.
 
Josephine Baker (born Freda), the American-French singer, dancer, and civil rights activist, is a potential namesake.
 Some of the Josephines in literature and recent pop culture are known by their nicknames—the admirably headstrong Jo in Little Women, Joey Potter (played by Katie Holmes) in Dawson's Creek, and Josie of Josie and the Pussycats. In Some Like it Hot, Josephine was the nom de femme of Tony Curtis.
 Josephines have been the subjects of countless songs, performed by artists ranging from Fats Domino to Tori Amos to the Black Crowes.

Josephine

One of the group of French 'ette'-ending names that emigrated to this country in the last century, though never as popular as some others, such as Claudette and Paulette--it did have a little six-year flurry here between 1967 and 1973. Josette may be feminine and flirty, but, given the choice, most parents today would prefer Josephine.

Josette

Josiah—a biblical name with lots of quaint, old-fashioned charm—makes a much fresher sounding alternative to either Joseph or Joshua, combining the best of both. Josiah is among the several Biblical boys' names that have been on the rise this decade.
 Josiah is derived from Yoshiyahu, a Hebrew name from the components yoshi, meaning "support," and Yahu, referring to the Hebrew god. 
 
In the Old Testament, Josiah was an upright king of Judah from the age of eight, after his father Amon was murdered. Josias is a related Latin variation that is found in some biblical translations.
 
Two Josiahs, Wedgwood and Spode, founded the fine English potteries that bear their names. Josiah Bartlett was a signer of the Declaration of Independence, and the President on The West Wing shared his name, being a fictional descendant. 
 Charles Dickens used the name for a character in his novel Hard Times and Josiah Borden is a character in Eugene O'Neill's tragedy Mourning Becomes Electra.

Josiah

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 biblical Judith, the fourth most <a href="https://nameberry.com/popular-names">popular name</a> in 1940, may be getting ready for a comeback in its full, elegant, if somewhat solemn form. Many of those earlier Judiths were called Judy—some after Judy (born Frances) Garland—preferring it over their more formal proper name. Today, Judith, like Deborah, may have shaken off just enough to appeal to parents looking for a traditional, yet under-the-radar biblical name. And Jude would be a likelier nickname these days than the Judge Judy connection.
 Judith of Bethulia was the singularly beautiful wife of Esau who delivered her people from the invading Assyrians.
 Shakespeare named one of his daughters Judith, and Dame Judi Dench was, of course, born Judith. Some other namesakes are novelists Judith Krantz and Judith Rossner and dancer-choreographer Judith Jamison. The baby in The Walking Dead is named Judith.

Judith

Though Jules hasn't been on the US popularity list in fifty years, it is a current hit in its native France—where it's currently in the Top 10—and we can definitely see it making a comeback here, being far more romantic than, say, Jim. 
 The glittering Jules has a solid history, attached to such cultural notables as author Verne, opera composer Massenet, painter Olitski, and cartoonist Feiffer, as well as appearing as a character in such iconic films as Pulp Fiction and St. Elmo's Fire and in Balzac's novel The Human Comedy and Ayn Rand's Atlas Shrugged.
 These days, Jules is also apt to be heard as a nickname for the feminine Julia or Julie, as in TV personality Jules Asner, the Keira Knightley character in Bend it Like Beckham, and celebrity chef Jamie Oliver's wife—spelled Jools.

Jules

TV personality Jules Asner made this middle-aged male name suddenly seem young and fresh and female, after having been an off-the radar-nickname for Julia and Julie. Author and wife of celebrity chef Jamie Oliver spells her name Jools, and we've also seen Joolz.

Julia was an ancient Roman imperial name given to females in the house of a Julius, as in Caesar. Its origin is shrouded in history, but possible roots include Latin iuvenis, meaning "youthfu"; Greek ioulos, meaning "downy-bearded"; or Jovis, a form of Jupiter, which means "sky father".
 
An enduring classic, Julia has a lot going for it: ancient roots but a modern, fashionable feel, simplicity and sophistication, and connections to both saints and celebs, including actress Julia Roberts and Saint Julia of Corsica. The elegant Julia's one of the least problematic choices a parent could make. 
 
Julia is also Shakespearean, Dickensian, Orwellian, and Harry Potter-related. The ground-breaking 1960s TV show Julia was the first to feature a non-stereotypical African American woman. Celebrity chef Julia Child is a notable namesake.
 
Julia has been in the US Top 150 since Social Security records have been kept and is currently the only <a href="https://nameberry.com/search/girls-names/j">girls' name starting with J</a> in the US Top 100. She's even more popular internationally, and is highly popular in the Netherlands in Spain, and in Germany, Belgium, France, Norway, and Sweden.
 
If you think Julia is too simple, you might want to move to Juliet, Juliette, or Juliana, or even the Italian Giulia. Sixties short form Julie has segued from cute to middle-aged. Jules is much more current.

Julia

Cool and charming, with plenty of flair and sophistication, Julian manages to strike the balance between being a sensible classic and contemporary choice. Appealingly international, it is no wonder Julian is a rising star.
 
The name Julian derived from Iulianus, which in turn came from the Roman family name, Julius. Its origins are hard to pin down, but possible roots include the Latin iuvenis, meaning “youthful”; the Greek ioulos, meaning “downy-bearded”; or Jovis, a form of Jupiter, which means “sky father.”
 
A well-travelled name with plenty of history, Julian, rather fittingly, was the name of St. Julian the Hospitaller, the patron saint of travellers. Other famous Julians include Julian the Apostate, a 4th century Roman emperor, the activist and politician, Julian Bond, the singer and documentary maker, Julian Lennon, and the novelist, Julian Barnes.
 
Beyond the history books, Julian has also made its mark on popular culture. It was used by Shirley Jackson in her mystery novel, We Have Always Lived in The Castle and by Jessica Love in her award-winning picture book Julian is a Mermaid. It has also been given to characters on TV shows such as “Alias”, “Law & Order”, and BBC “Ghosts”.
 
Julian is currently a firm favorite in the US, where it has been given to 7000 boys each year and remained in the Top 50 for the last decade. It’s also made waves in Austria, Sweden, Chile, The Netherlands, and Mexico, where it ranks in the Top 100 of each country.
 
The name holds sway with celebrities too, with Robert De Niro, Lisa Kudrow, Jerry Seinfeld, Paula Patton, Robin Thicke, Daniel Wilcox, and Jennifer Paz among those who’ve chosen it for their sons.
 
Though significantly more popular for boys, in Medieval England, Julian was considered unisex. A handful of girls are still given the name today, though Julia and Juliet are parents’ current preferences.
 
If the handsome, versatile Julian appeals to you, but the popularity holds you back, then you could consider one of its variants, such as Guiliano, Jolyon, Julen, or Jules, or perhaps even Jupiter for something very bold.

Julian

Juliette, pronounced with the emphasis on the last syllable, adds a little something extra to Juliet. In the past years it has been rising up the chart.

 Juliet originated in the Middle Ages as a diminutive form of Julian, then a predominantly female name. It ultimately derives from Julius, a Roman family name. Its origin is shrouded in history, but possible roots include Latin iuvenis, meaning "youthful"; Greek ioulos, meaning "downy-bearded"; or Jovis, a form of Jupiter, which means "sky father".

Juliette

Juna, a variation of the newly stylish month name June, goddess name Juno, or literary Djuna, is among the fresher-feeling <a href="https://nameberry.com/search/girls-names/j">girl names starting with J</a>. While Juna has never been given to more than 50 baby girls per year in the US, it's a popular choice in Germany, Switzerland and the Netherlands.

Juna

June, a sweetly old-fashioned month name derived from the goddess Juno, was long locked in a time capsule with June Allyson (born Ella) and June Cleaver, but is rising again especially as a middle name. 
 June was a Top 100 name from 1915 to 1941, peaking in 1925 at Number 39. It fell off the U.S. Top 1000 in 1987 and returned in 2008 after a two-decade hiatus. Now, we'd call it one of the vintage girls' names starting with J due for a comeback. Balthazar Getty has a daughter named June and Amanda Peet used it as her daughter Molly's middle name.
 Juni is the Scandinavian version; other related choices are Junia, Juno, Juna and Djuna.

June

Juneau, the name of the city in Alaska, has rightfully taken a back seat as a name to the classic Juno.  Most famous reference: When the pregnant teenager is introduced in the movie "Juno," the prospective adoptive father says, "Oh, like the city in Alaska."  Juno takes a deep breath and then says simply, "No."

Juneau

Juno is hot, June is showing signs of a comeback along with other month and day names, whereas Junia, the name of the the first century Christian referred to by the apostle Paul as an apostle (and who may have been male), is yet to be discovered.


Junia

Juno is an ancient name that feels as fresh as if it had been minted &mdash; well, not yesterday, but in 2007. Since the release of the popular indie film Juno, this lively but strong o-ending Roman goddess name has become more and more prominent as a potential baby name &mdash; Coldplay's Will Champion chose Juno for one of his twins (whose brother is the kingly Rex).
 
Juno was the sister and wife (hmmm) of Jupiter, and the mother of Mars and Vulcan. The patron goddess of Rome and protector of women and marriage, Juno's name is heard in Virgil's Aeneid, Shakespeare's The Tempest, and Sean O'Casey's 1924 play Juno and the Paycock. The deity's name is of uncertain origin, but likely derives from the root -iuwen, meaning young. With Jupiter and Minerva, she made the Capitoline triad, whose worship was at the very center of Roman religion.

Juno

DoctorWoo's list "Jolly J Names" of 46 great name ideas: Jack - Juno!