Aiden in all its spelling variations is the Anglicized version of the Irish Aodhán, which was originally a pet form of the Irish name Aodh (pronounced 'ee'), who was the old Celtic god of the sun and fire. St. Aidan was a famous seventh century Irish saint, noted for his kindness and generosity and for spreading Christianity.
 
Aiden has been a spectacular name success story—especially if you add all its various spellings together. Counted together, Aiden in all its versions is still a Top 10 boys' name.
 
The Aiden spelling has become the predominant version of the name in the US, followed by Ayden -- and then, in order of popularity, Aidan, Adan, Aden, Aydin, Aydan, Eiden, Aidyn, Eydan, Eyden, Adin, Aedan, and Aiyden. And then there's a pack of popular rhyming offshoots such as Brayden and Kaden.
 
Irish actor Aidan Quinn introduced the name to the US. The Aiden spelling was used by actress Tracey Gold and Rod Stewart for their sons.

Aiden

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

Though short and brisk, no nickname name could have a more creative image. Comic actor Chris O'Dowd named his son Art, as in his native Ireland it's used as a name on its own, separate from Arthur., coming from an ancient word for ""a bear,"" and used in the sense of ""outstanding warrior"" or ""champion."" A pagan High King of Ireland, Art’s rule was so honest that two angels hovered over him in battle.

Charles derives from the Germanic name Karl, meaning "man" or "free man", and is a royal name in multiple European countries. A famous early bearer is Charlemagne, King of the Franks and Lombards and then Roman Emperor in the 8th-9th centuries. 
 
The word for "king" in several languages, including Slavic, Russian, and Polish, came from Charles. And, of course, Charles III is the current king of Great Britain.
 
Charles is a longtime traditional favorite that was in the Top 10 until the 1960s. Though not as popular as it once was, it's still a widely used name. 
 
The most fashionable form of Charles today is Charlie, used almost equally for girls and boys. And of course, Charlie or Charley is still used as a short form for Charles, along with the old school Chuck and new school Chas/Chaz.
 
Lately, Charles has been resuscitated by many celeb parents, from Jodie Foster to Russell Crowe, honoring a distinguished history dating back to the emperor Charlemagne—the original Charles the Great. 
 
Charles has been so well used for so long that it is virtually faceless—it can conjure up anyone from Dickens to Chaplin to Bronson. It has been an elegant royal name—designating both Bonnie Prince Charlie, leader of a 1745 rebellion, and the present king, as well as previous kings of France, Spain, England, Portugal, and Hungary. 
 
Among the well used international versions of Charles: Carl, Carlo, Carlos, Karel, Xarles, Charlot, and Siarl.

Charles

Extremely popular in Ireland, Ciaran is also well used in England and is beginning to be adopted by parents in the U.S., though usually via the more American-friendly Kieran spelling. The Irish spelling is, however, becoming more familiar on this side of the Atlantic, due to the rising popularity of Belfast-born actor Ciaran Hinds.
 Although it was the name of twenty-six saints in Ireland, Ciaran was not used as a secular name there until the 1950s.

Ciaran

Carice

Conleth

Diana, the tragic British princess, inspired many fashions, but strangely, not one for her name. For us, Diana is a gorgeous and still-underused choice.
 Diana is the Latin name for the Roman goddess associated with the moon, virginity, and hunting; she is the protector of wild animals, represented in myth as both beautiful and chaste.
 Two of her most prominent bearers today are singers Diana (born Diane) Ross and Krall. Fictional Dianas appear in All's Well That Ends Well, Jane Eyre, and Anne of Green Gables.
 Now that the Duke and Duchess of Cambridge have named their daughter Charlotte Elizabeth Diana, perhaps this name will finally attract more attention and greater use.

Diana

Ellie first took off in the UK—yes, in this nickname form—and this warm and friendly name has also become hugely popular here. In 2011, Ellie entered the US Top 100 girl names for the first time and has remained near the top of the charts ever since.
 
Ellie derived as a nickname for names beginning with El-, such as Eleanor, Ella, and Elizabeth. In fact, Ellie's biggest downside is that it's used as a nickname for so many names, and given so frequently on its own, that you are sure to hear it far more than you might guess. Ellie is the standard spelling, but Elly and Elli are occasionally seen as variations.
 Ellie also has surprising international range, ranking highly not only in English-speaking countries but throughout Scandinavia and in Belgium and Switzerland.
 Ellie has been making many media appearances. Most recently, she's the young heroine played by Bella Ramsey in The Last of Us, based on a popular video game. Ellie has also been seen in the animated film Up, on The West Wing, and even as a woolly mammoth in the film Ice Age: The Meltdown.

Ellie

Emilia is the feminine form of the Roman clan name Aemilius, which derived from the Latin aemulus, meaning "rival." In Shakespeare’s Othello, Emilia is the wife of Iago and confidante of Desdemona. Amelia, although homonymous, has a different root and meaning. 
 
Emilia is rising as an Emily/Amelia alternative. In modern pop culture, Emilia is the name of the main character in The Princess Diaries and the first name of Game of Thrones and Solo star Emilia Clarke.
 Emilia is currently enjoying high popularity across some diverse cultures—it's near the top of the charts in Germany, Finland, Austria, Poland and Chile, and is favored in both English- and Spanish-speaking countries.

Emilia

Esmé comes from the past participle of the Old French verb esmer, meaing "to esteem" or "to love." It can also be considered a derivative of the Spanish name Esmeralda, which means "emerald". 

 Esmé began life as a masculine name, as in its original bearer, Esmé Stewart,1st Duke of Lennox, and Esmée, with the same pronunciation, was the feminine form. Today both spellings are used as feminine given names, along with Anglicizations including Esmay and Esmae.

 
Esmé is a sweet, sophisticated and charming literary name, from J. D. Salinger's classic 1950 story For Esmé, With Love and Squalor. Esme is also one of the most stylish <a href="/list/434/Baby-Names-That-Mean-Love">baby names that mean love.</a>

 A current favorite among celebs, including Samantha Morton, Michael J. Fox and Katey Sagal, Esme got a lot of publicity via the character Esme Cullen, the vampire matriarch of the Olympic Coven in the Twilight Saga. Esme has long been more popular across the pond in the UK, where it currently makes the Top 50 baby girl names.

 The final accent indicates the pronunciation of ez-may, though in English you can just spell it Esme. Whatever the spelling, Esme is one of the fastest-rising <a href="https://nameberry.com/search/girls-names/e">girl names starting with E</a>.

Esme

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

Gemma is a jewel of a name, an Italian classic that was very popular in 1980s England, but has only recently been started to be used here; it entered <a href="https://nameberry.com/popular-names">the list</a> in 2008.
 Coming from a medieval Italian nickname for a precious gem, Gemma was the name of Dante's wife and was borne by a nineteenth century saint.
 Gemma is the name of the character played by Katey Sagal on Sons of Anarchy, and actress Catherine Bell has a daughter called Gemma, as does Kristin Davis.
 Bottom line: A stylish cousin of Emma and Jenna.

Gemma

Gethin

The Gwendoline form may introduce pronunciation confusion -- does that last syllable rhyme with wine or win or when?  We vote Gwendolen as not only the most proper but the clearest spelling, followed by Gwendolyn, with Gwendoline a distant third.

Gwendoline

Hannah is one of the nation's top biblical girls' names—it surpassed Sarah in 1998, and ranks in the Top 50 along with Elizabeth, Abigail, Chloe, and Naomi. Hannah is a name with many sources of appeal: Old Testament roots, soft and gentle sound, and a homey yet aristocratic image.
 Hannah originated as a variation of the Hebrew name Channah, derived from the word channan, meaning "grace." In the Old Testament, Hannah is the mother of Samuel. 
 
Names including Anne, Anna, Nancy, Anya, Annika, and Annabel are all related to Hannah. Alternate spellings such as Hana, Hanna, and Chana are also used.
 The TV show Hannah Montana was a huge TV teen sensation from 2006 to 2011, and more recently was the name Lena Dunham chose for her own character in her hit series Girls. Hannah Baker is a central character on the Netflix show 13 Reasons Why.
 Hannah is also a name that in its varied versions, which include Hana and Hanna, has roots in many cultures, from Hebrew to Arabic, European to Asian. All in all, Hannah is still a wonderful if widely used name.

Hannah

Harry is the medieval English form of Henry, which derived from the Germanic name Heimrich, meaning "estate ruler." Harry was the nickname of all eight King Henrys; it is also a diminutive of Harold and Harrison.
 
We're just wild about Harry! Harry was everyone's elderly uncle until Princess Diana, following British royal tradition, named her son Henry but called him Harry. Then Harry Potter became a rage and Harry Styles of One Direction became the hottest boy bander of the new millennium. Thus, Harry's avuncular image was history. Harry is still much more popular in England, Ireland, and Scotland than it is in the US, but its classic yet unpretentious image makes it a recommended choice.
 
Harry was a Top 20 name in the US from 1880 to 1918, and continued in the Top 100 into the 1950s (hence the song "I'm Just Wild About Harry"), and has countless worthy namesakes, including Truman, Belafonte, and Houdini.
 
Among the celebs who have chosen this good guy name for their sons are David Letterman (it was his father's name), Simon Baker, and Billy Bob Thornton. It's also found in a number of movie titles from The Trouble with Harry to Dirty Harry to When Harry Met Sally.

Harry

Iain, this authentic Gaelic form of John, has been well used in Scotland since the early twentieth century, used concurrently with the shortened Ian spelling, but is rarely seen in the US. 
 Iain Banks and Iain Sinclair are respected contemporary Scottish novelists.

Iain

Ian is Scottish form of John, derived from the Hebrew name Yohanan. It is an Anglicization of the Scottish Gaelic Iain, which is also a viable spelling. Ian was introduced to Americans by Ian Fleming, creator of James Bond.
 
Ian was rather late making inroads on our shores—it was already the seventh most popular name in England in 1975. It’s been on a steady path in the Top 100 ever since the introduction of James Bond, thanks to its jaunty charm. Today, Ian flies in formation with fellow classic British RAF pilot names, like Derek and Miles and Colin, all now certified U.S. citizens, packing considerable punch and panache into its three short letters. So though it may not be the newest name on the block, it's still a recommended choice. 
 
Notable namesakes include actor Ian McKellan and novelist Ian McEwan. Actor Ian Ziering pronounces his name EYE-an, rather than the traditional EE-an.

A striking and feminine possibility associated with a modern hero — longtime Indian prime minister Indira Gandhi. 

Indira

Isaac has shaved off his biblical beard and leaped into the upper echelon of popular boys' names, outrunning cousin Isaiah. A favorite of the Puritans, Isaac has never dipped below Number 400 on the US list of top boy names.
 Isaac evolved from the name Yitzchaq, derived from the Hebrew word tzachaq, meaning "to laugh." In the Old Testament, Isaac was the long-awaited son of the elderly Sarah and 100-year-old Abraham, so old that their news provoked laughter, giving the name its meaning. Isaac is used as a given name among Jews, Christians, and Muslims alike.
 
A baby given this name can point to many distinguished namesakes, including Isaacs (and Izaaks) Newton, Walton, Bashevis Singer, Asimov, Stern, Hayes, and Hanson.
 
Isaac also boasts the cute nicknames of Izzy — now shared, however, with a bevy of Isabellas — and Ike.

Isaac

Iwan

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

Jerome has a bespectacled, serious, studious image, just like its namesake saint, who was a brilliant scholar. St. Jerome is the patron saint of students, librarians, and archaeologists.
 Musical namesakes include Jerome Kern and Jerome Robbins, and Jerome is also the birthname of J.D Salinger, Jerry Garcia, and Jerry Seinfeld, as well as one of the Three Stooges.
 The Latin form is Hieronymus, as in the painter Bosch.

Jerome

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

Kate, in the headlines via Catherine Middleton aka the Princess of Wales, has been as pervasive as Kathy was in the 1950s and 1960s, both as a nickname for Katherine and Kaitlyn and as a strong, classic stand-alone name. 
 
Deriving from the classic Katherine, Kate has been used since the Middle Ages. It might have emerged from one of the possible Greek origins of the name, Aikaterine, to get that longer 'A' sound. 
 
Kate has an image that's independent, smart, and energetic, recalling Kate Hepburn, the heroine of The Taming of the Shrew/Kiss Me Kate, and contemporary Kates: Winslet, Hudson, Moss, Spade and Beckinsale. Cate Blanchett has helped popularize an alternative spelling of the name, while Kate Sheppard was a prominent member of the New Zealand suffrage movement and played a key role in making New Zealand the first country to allow women to vote in parliamentary elections. 
 Kate is also the female equivalent of Jack as a favorite character name in the movies, TV, and books. It's down-to-earth yet classy, common yet cool.
 Kate has always been, and remains, mega popular in Ireland, where it ranks in the Top 50. Elsewhere, it has declined in popularity since its moment in the 90s and 2000s, but nevertheless, around 640 girls received the name in the US in 2023.

Kate

Actor Kit Harington, aka the dreamy Jon Snow on Game of Thrones, has given this nickname-name new style and appeal for boys. Actress Jodie Foster used it for her son. 
Kit is one of those names that is gender-neutral but has a different derivation for boys and girls. For boys, it originated as a short form of Christopher, while for girls, it's an updated diminutive of Katherine.
Kit as a full name is still beneath the Top 1000 for both sexes in the US, but it's getting more popular. In 2022, 166 baby girls and 137 baby boys were named Kit, up from 104 and 129 in 2021.

Kristofer and all his cousins (and kousins) is an ancient name that was hugely popular from the 1970s through the 1990s, spawning a wide number of variations. Americans will be familiar with this phonetic spelling with an exotic spin.

Kristofer

This pet form of Helena and other ena-ending names, long used as an independent name, is attracting notice again as an option both multicultural and simple. Lena was a Top 100 name from 1880 to 1920.
 A past inspiration might be the lovely singer Lena Horne, a contemporary one is the hot creator of and actress in Girls, Lena Dunham, another might be Game of Thrones actress Lena Headey.
 Lena Grove is a simple but strong character in William Faulkner's Light in August.

Lena

Liam is the top boys' name in the US, holding the Number 1 spot for the past seven years and also ranking as one of the most popular boys' names around the western world.
 Liam originated as a short form of Uilliam, the Irish variation of William. William is an English name from Germanic roots that was brought to Ireland when the British fled England following the Norman Conquest. The Irish began using English names, including William, which led to the development of Uilliam and its short form, Liam.
 Internationally, Liam is enjoying great popularity not only in the U.S. and its native Ireland, but in countries as diverse as Italy and Israel, Chile and Croatia. If you're looking for a boys' name that will easily translate across many languages and cultures, you can't do better than Liam.
 Irish-born actor Liam Neeson was instrumental in driving Liam up the charts, as was former Oasis member Liam (born William) Gallagher, and, more recently, One Direction member Liam Payne. Celebrities who have chosen Liam for their sons include Tori Spelling, Calista Flockhart, Rod Stewart, Kevin Costner and Craig Ferguson.
 Jaunty and richly textured, Liam holds solidly to the title of most popular boys' name starting with the letter L.

Liam

Maisie, a charming name long popular as a nickname for Margaret or Mary, entered the Top 1000 as itself ten years ago and continues to rise. Game of Thrones star Maisie Williams helped propel the name back into the limelight, along with the that of her character, Arya.

In literature, Maisie is the name of the precocious young title character in the Henry James novel What Maisie Knew, and is also the main female character in Rudyard Kipling's The Light That Failed. And to bring things up to date, Maisie is a half-blood character in the Harry Potter series. Spelled Maisy, it's a popular children's book series.
 When Maisie re-entered the US Top 1000 in 2014 at 658, it was one of the fastest rising names of that year. She's still got a ways to go In the US to catch up to other English-speaking countries, where Maisie ranks in the Top 100.

Maisie

Mark has the rare appeal of a strong, sleek name with a minimalist modern feel and ancient roots. The name Mark is taken from the Roman god of war Mars, also the namesake of the planet.
 After centuries of lagging behind other apostle names Peter and Paul, Mark suddenly caught on in the early 1950s, reaching Number 6 by 1960. It was in the Top 10 from 1955 to 1970 and has been among the Top 1000 boys' names for the century and a half that the US has been keeping name records.
 Mark Twain was, of course, the pen name taken by Samuel Clemens. Prominent current bearers include actor Mark Ruffalo, Mark Wahlberg (the onetime Marky Mark), and Facebook founder Mark Zuckerberg. Businessman Mark Cuban, owner of the Dallas Mavericks, is one of the main Sharks on Shark Tank.
 Marc is another, equally acceptable but less popular spelling. There are seven baby boys named Mark for every one spelled Marc.

Mark

Michael was the Number 1 American boys' name for almost half a century. While Michael has moved out of the Top 10 <a href="https://nameberry.com/boys-names">baby boy names</a>, it's still widely used. 
 
How has Michael racked up this phenomenal record? Credit its use by parents of diverse ethnic and religious groups, and Michael's all-around likability, strength, and sincerity. 
 
Michael was derived from the name Mikha’el, which comes from the rhetorical question mī kā’ēl, meaning "who is like God?" in Hebrew. In the Bible, Michael is the archangel who led the other angels to victory in a war against Satan, one of only two archangels (the other is Gabriel) recognized by Jews, Christians and Muslims alike. 
 
Today, Michael may feel more like a dad name than a baby name. Substitutes you might consider include Micah, Malachi, Gabriel and Raphael.

Michael

Michelle is the feminine form of Michel, the French variation of Michael. Michael was derived from the Hebrew name Mihka’el, meaning "who is like God." The alternate spelling Michele, with one "L," was the original version of the name. Michelle appeared as a later Anglicization in the 20th century.
 
Onetime superstar name (Number 4 in the seventies) that's now in steep decline, having dropped out of the Top 100. Former First Lady Michelle Obama keeps it in the spotlight. Today's feminine form of Michael is more likely to be some form of Michaela...or Makayla.

Michelle

Natalia was derived from the Latin word natalis, meaning "birthday." It refers to the birthday of Jesus Christ, and thus originated as a name for girls born on Christmas Day. Related forms include the French Natalie, Portuguese Natalina, and Russian diminutive Natasha.
 
More romantic that Natalie, more unusual than Natasha and heard frequently in Spain, Portugal, and the Slavic countries, this is a distinctive, strong but feminine member of the Natalie/Natasha family, with the appealing short form Talia. 
 
Like her cousins, Natalia is a name often given to girls born around Christmas.
 
Natalie Wood was born Natalia. Other namesakes include renowned Russian-born prima ballerina Natalia Makarova and supermodel Natalia Vodianova.

Natalia

Natalie—a Franco-Russian name—became Americanized years ago and is one of those surprising names that's always ranked among the girls' Top 1000 names in the US.
 An Old Lady Name in the 1950s, Natalie reversed course and has been more popular than ever in this century, though it's fallen off a bit from its peak in 2008.
 Natalie is the French variation of Natalia, a name originally derived from the Latin phrase natale domini, meaning "birthday of the Lord." It was historically given to girls born around Christmas for this reason. 
 Natalie was Cameron Diaz's character in Charlie's Angels, and was attached to first Natalie Wood, then Natalie Cole (named for her father), and now Natalie Portman. 
 Along with Cole, Natalie has other musical ties to singers—Maines, Imbruglia and Merchant -- and to a not too flattering hit song by Bruno Mars. Natalie has been a TV regular ranging from the lovable character on the old The Facts of Life, to Monk to Orange is the New Black.
 
Nathalie is an additional, though less common, spelling of the name.

Natalie

Nikolaj

Oona is a name made famous by Eugene O'Neill's daughter, who became Charlie Chaplin's wife. One of the original Oona's granddaughters was named after her, and is now an actress famous in her own right for playing Talisa of Volantis in HBO's "Game of Thrones." The double-o beginning gives their name a lot of oomph.
 In Irish legend, Una/Oona was a daughter of a king of Lochlainn. The name was very popular in Ireland in the Middle Ages, and is currently seeing a comeback--also spelled Oonagh.

Oona

Paul is an ancient <a href="https://nameberry.com/boys-names">name for boys</a> -- popular in Roman and medieval times -- that's not very fashionable now, which can work in its favor, scarcity balancing simplicity. 
To the thousands of girls who screamed the name of their favorite Beatle in the 1960s, the boys' name Paul had a thrillingly unique image, but to the rest of the world, then and now, it's a name that's so simple and yet so widely diffuse that it could belong to almost anyone.
 Paul also has a rich religious background: Saint Paul (originally called Saul but baptized Paul after his conversion) was a cofounder with Peter of the Christian church, and there have been six Pope Pauls.
 Paul also boasts a wide range of name-sharing heroes, from Revere to Newman, Cezanne to McCartney. Some creative foreign versions are Pablo (Spanish), Paolo (Itlaian), Pavel (Russian) and Paavo (Finnish).
 Paul's single syllable also make it one of the most popular traditional <a href="https://nameberry.com/list/673/middle-names">middle names</a>.

Paul

Pedro is one of the most familiar <a href="https://nameberry.com/baby-names/496/spanish-names-for-boys">Spanish names for boys</a>, via baseball star Pedro Rodriguez and many others. 

Like its Anglo equivalent Peter, Pedro is not as popular as it once was. But it's among the elite group of boys' names that has ALWAYS ranked among the US Top 1000.

That final O sound, so fashionable today, gives this name an extra spin of style.

Pedro

Peter is derived from the Greek Petros, meaning "rock" or "stone." One of the most important figures in the Christian hagiography is Saint Peter, keeper of the Gates of Heaven. Born Simon bar Jonah, he was given the nickname Peter by Jesus, to signify that he would be the rock on which Christ would build Christianity. Centuries later, there was Peter the Great, the czar who developed Russia as a major European power.
 
For generations, there have been pleasant childhood associations with this classic New Testament name, what with Peter Rabbit, Peter Pan, et al. But as user-friendly as this makes the name, it has a solid, traditional side as well.
 
Never as widely used as some of the more traditional Anglo-Saxon stalwarts, Peter retains an enduring appeal to parents seeking a less-used classic, with those nice childhood associations. Peter also has some interesting derivatives: The Brits like Piers; the Irish, Pierce and Pearse; the Italians, Piero and Pietro; the Spanish, Pedro; the French, Pierre; and the Dutch, Piet.
 
One potential problem: in some parts of the world, "peter" can be a slang term for "penis".

Peter

A classic old Norman name popular for a thousand years and favored for kings (Richard Nixon was named for Richard the Lionhearted), as well as the hoi polloi (as in every Tom, Dick and Harry), Richard was the sixth most popular US <a href="https://nameberry.com/boys-names">boys’ name</a> in 1925, and was still Number 8 in 1950, but is now much less popular. 
 We predict that if parents do readopt the name Richard, it will be in its full and formal version. All the possible nicknames -- Richie (too Happy Days), Ricky, (too I Love Lucy) and especially Dick (too tricky and teasable) -- sound so dated that it's hard to imagine Richard ever coming back into style. But not that long ago, people said that about now-hot <a href="https://nameberry.com/">baby names</a> Jake and Max.

Richard

This spirited Gaelic classic, which became popular in Ireland via the illustrious twelfth century king Rory O'Connor, makes a highly energetic choice, now used for either sex. Rory's gender split is still trending boyward; it's one of the coolest <a href="https://nameberry.com/search/boys-names/r">boys' names starting with R</a>. 
 In England and Wales, however, the name is virtually never given to girls. It's seen as thoroughly male (and non-female) as Roger or Richard.
 Rory first came to attention in the US in the person of mid-century pin-up boy Rory Calhoun (born Francis Timothy). The name entered the popularity list in 1947, peaking at Number 280 in 1959. 
 Young Irish U.S. Open champ Rory Mcllroy makes a worthy namesake. Bill and Melinda Gates chose Rory as the name of their only son.
 Rory is a popular choice all throughout the UK. Skip baffling Gaelic spellings like Ruari and Ruaidhri and stick with the more straightforward Rory.

Rory

Rose is derived from the Latin rosa, which referred to the flower. There is also evidence to suggest it was a Norman variation of the Germanic name Hrodohaidis, meaning "famous type," and also Hros, "horse". In Old English it was translated as Roese and Rohese.
 
Rose, one of the old-time sweet-smelling flower names, has had a remarkable revival—first of all as a middle name—with parents (e.g., Jennifer Garner & Ben Affleck, Jon Stewart, Eric Clapton, Ewan McGregor) finding Rose to be the perfect connective, with more color and charm than old standbys like Sue and Ann. At this point in time, though, some parents are finding there are too many roses in the middle spot of the garden.
 As a first name, Rose reached its highest point from 1896 to 1921, the early heyday of flower names, when it was in the Top 20, though it had been in use for centuries before. Rosy/Rosie is an irresistibly cheery nickname, very popular on its own in the UK. There are any number of Rose offshoots, including Rosa, Rosetta, Roseanne, Rosanna, Rosemary, Rosamund, Rosalind, Rosalie, and Rosina.
 Rose and Rosie have long been celebrated in song, and notable Roses range from Rose Kennedy to Rose Byrne, and on-screen Roses have featured in a range of films and TV shows, from Titanic to Harry Potter to Golden Girls.

Rose

Sean, after a long reign as one of the top <a href="https://nameberry.com/list/328/irish-baby-names-for-boys">Irish boys' names</a> in the US, has now slipped as parents look to fresher Irish choices such as Liam and Aidan. In Ireland, Sean is still highly popular, but variation Senan, an Anglicized spelling of diminutive Seanan, is also stylish in Ireland. While Sean is the Irish form of John, Seanan and Senan may be thought of either as Sean diminutives or relatives of the Latin word "senator".

Sean

Sibel

Sophie is the French form of the Greek Sophia, for which it is also commonly used as a nickname. Given Sophia's long standing among the Top 10 girl names in the US, Sophie may feel more popular than it actually is.
 
Sophies are scattered throughout European royal history, including Sophie of Thuringia, Duchess of Brabant, Princess Sophie of Sweden, and in modern times, Sophie, Duchess of Wessex, the wife of Britain's Prince Edward. German-born Catherine the Great was born Sophie of Anhalt-Zerbst, but changed her name to Catherine upon her conversion to Russian Orthodoxy.
 
Sophie is Sophia's cuter, more irreverent near-identical twin. Which do you like better? And do you see them as virtually the same name or very different? While you definitely couldn't name sisters Sophie and Sophia, you may have both on your short list and consider them distinctly separate choices. Sophie is lively and down-to-earth, while Sophia is more sophisticated and buttoned-up. 
 
Sophie was the choice of both Eric Clapton and Luke Perry, as well as of Bette Midler for her now-grown daughter.
 Sophie Zawistowska is the Polish heroine of the iconic William Styron novel Sophie's Choice, played in the 1982 film by Meryl Streep—who would play the mother of a Sophie decades later in Mamma Mia!.

Sophie

Stephen, also spelled Steven, is a strong and likable classic, with the he's-a-great-guy short form Steve. Though not as well-used or fashionable as it was in its heyday -- it was a Top 25 name from 1946 to 1957 -- it's still a widely used name. It remains an even more popular in Ireland.
 Already common in ancient Greece, Stephen was the name of the first Christian martyr, one of the seven men chosen to help the apostles spread the gospel of Christianity. It also was the name of several popes and a British king.
 There have been innumerable pop-culture role models among its bearers, including Foster, Hawking, Sondheim, Colbert and King. Steves and Stevens, meanwhile, count Spielberg, Martin and the late Jobs among them. In literature, the name has been used by Dickens (in Hard Times), George Eliot (in The Mill on the Floss) and James Joyce (in A Portrait of the Artist as a Young Man).
 Among the attractive international versions are Stefan, Stefano and Stephano, Esteban and Etienne.

Stephen

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

marvelous_things's list "Game Of Thrones Cast Names" of 50 great name ideas: Aiden - Thomas!

Game Of Thrones Cast Names

I've seen several list of character names from Game of Thrones / A Song of Ice and Fire, but never one of a list of actors from the HBO series. So I made one myself.