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

Ailin

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

Aimirgin 

Who knew there were so many soccer fans in the U.S.? Beckham -- as in British sensation David -- has exploded onto the baby name scene in the past decade.

Beckham

One of the trendiest of the new two-syllable <a href="https://nameberry.com/boys-names">boys’ names</a> that have swept the country in the past few years, including the rhyming Aidan, Caden, Kaden, and Jaden. It's been falling on the US Top 1000 lately but it is still among the most popular contemporary <a href="https://nameberry.com/baby-names/502/english-names-for-boys">English names for boys</a>..

Braden

Bréanainn

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

Callum

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

Cavan

For a generation, this name will always be linked to 1990s hit TV series Friends. Whether this is a positive or a negative will depend on your fondness for the show, and character Chandler Bing, but this name deserves consideration beyond these connotations: Chandler is a fresh take on the professional surname names.

Chandler

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

Connelly is an open, inviting, and rarely used Irish surname that can make a perfect alternative to the overused Connor or Colin for a boy. 

Connelly

Connor, the appealing name of an early semi-legendary king of Ulster in Irish mythology, sits firmly in the Top 100 and taken together with its alternate spellings would rank even higher. In its native Ireland the Conor version is one of the highest charting <a href="https://nameberry.com/boys-names">boys’ name</a>.
 Connor MacLeod was the name of the title character in the 1986 film The Highlander, which helped promote the name.
 Nicole Kidman and Tom Cruise have a teen-aged son named Connor, while Eric Clapton has a younger Conor; the name of the Irish writer and historian is spelled Conor Cruise O'Brien.
 Since Connor means 'lover of hounds,' it might make a good choice for a dog-loving family. In fact, one of the sons in Marley and Me is given that name.

Connor

Also Anglicized as Dara and also spelled Daire in its native form, Darragh has an undeniably rugged appeal. It's used for both girls and boys in Ireland, but it's very popular in particular for boys.

Darragh

Declan is the Anglicized form of the Irish name Deaglán. St. Declan was one of the first missionaries to bring Christianity to Ireland, preceding St. Patrick. Originally from Wales, he founded the monastery of Ardmore in Ireland.
 
Declan, the amiable and appealing name of an Irish saint (and the real first name of singer Elvis Costello), is very popular in the Emerald Isle and beginning its certain climb to popularity here, after debuting on the American list in 1998. Like Aidan and Liam, Declan is shaping up to be an American hit.
 
Declan Porter is a current character on Revenge. 
 Cyndi Lauper spelled her son's name Declyn.

Declan

Desmond is a sophisticated and debonair name, with noble ties to 1984 Nobel Peace Prize-winning Bishop Desmond Tutu, and with some great nicknames: Des/Dez, Desi/Dezi.
 Another notable Desmond is British zoologist and anthropologist Desmond Morris, author of The Naked Ape and other popular books.
 The character Desmond David Hume on Lost was named in tribute to philosopher David Hume, and the name also appears on Oz. Desmond Harrington plays Detective Joseph Quinn on Dexter. Desmond Miles is the protagonist in video game series Assassin's Creed.
 And we can't forget all the references to Desmond in the Beatles song "Ob-La-Di, Ob-La-Da"—possibly used in tribute to reggae singer Desmond Dekker.

Desmond

Eamon is one of the traditional <a href="https://nameberry.com/baby-names/168/irish-names">Irish names</a> that has not yet emigrated to the US. This Irish name pronounced ay-mon was popularized by early president of the independent republic Eamon de Valera (birth name George), who was born in the United States to an Irish mother and a Cuban father. Eamon definitely has possibilities as a successor to the epidemically popular Aidan/Aiden.
 Though it may be an older generation name in Ireland, it would sound fresh elsewhere.
 The original spelling of the name is Eamonn.

Eamon

Pronounced like Owen, this was the name of several early Irish kings and saints, as well as a celebrated Ulster hero. Often spelled with two 'n's in Scotland, it has been Anglicized as Ewan, Ewen, Euan, Owen, Hugh, or Eugene.

Eoghan

Though Eoin is a Gaelic form of John, its Anglicized pronunciation links it directly to Owen. Eoin is currently a Top 30 name in Ireland. Other variations: Ewan, Ewen, Evan and Eoghan (pronounced as Owen but also translated as Eugene).

 Eoin Colfer is the author of the Artemis Fowl books.

Eoin

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

Flynn, a charming Irish surname, is still used only quietly, despite its easygoing, casual cowboy charm, unlike Finn which is a star of this genre. Flynn was the choice of Orlando Bloom and Miranda Kerr for their baby boy, and is also the middle name -- used as his first -- of a son of Miranda's fellow supermodel Elle Macpherson, of Gary Oldman's son Gulliver and Marley Shelton's daughter West.
 Flynn Rider (born Eugene Fitzherbert) is the dashing animated hero of the Disney film "Tangled." On TV's "Breaking Bad", Flynn was what young Walter Jr. tried to rename himself. The name was long associated with the swashbuckling Errol Flynn, inspiration of the phrase "in like Flynn." Some may connect this name to controversial former National Security Adviser Michael Flynn
 Flynn entered the U.S. Top 1000 in 2011, and is a highly popular choice in Australia and New Zealand.

Flynn

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

One of those simple, straightforward English surnames -- and with a presidential pedigree -- that's easy to translate into a first. It was recently chosen by both Kevin Costner and Jessica Alba for their sons, which can likely be credited for its spike in popularity in the past few years. Surname names and nature names like Hayes, which qualifies on both counts, along with occupational names all make up the new generation of stylish <a href="https://nameberry.com/baby-names/502/english-names-for-boys">English names for boys</a> that go far beyond Harry and Edward.

Hayes

Patrician to the core, Hugh was firmly in the Top 100 until 1903. It's never achieved those heights again, though it has always managed to remain in the Top 1000, scraping bottom at literally Number 1000 in 2006 before reversing course and heading back upwards.
 Hugh has always been particularly prevalent among the Irish—there have been 20 Irish Saint Hughs, and it's traditionally associated with the O'Donnell clan. Hugh was an early immigrant to the New World, where there were two Hughs in the first English-speaking settlement in America. Hugh's biggest drawback is its sound, barely more than an exhaled breath. 
 
Actor Hugh Jackman adds a dash of the romantic hero, and other prominent Hughs include Hugh Laurie (born James Hugh), Hugh Grant, and Hugh Dancy. Then there's Hugh Hefner, known to the world as Hef. 
 Hew and Huw are the distinctively—probably too distinctively—spelled Welsh forms.
 A modern alternate option would be the surname Hughes.

Hugh

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

Kellan Lutz is the attractive young actor who plays Emmett Cullen in the Twilight series.

Kellan

This attractive surname name still projects that Kennedy family charisma. While it didn't come into widespread use until long after the deaths of martyred heroes President John F. or Senator Robert Kennedy, Kennedy is now one of the most <a href="https://nameberry.com/unisex-names">popular unisex names</a>, particularly for girls. This is one name that manages to sound trendy and traditional at the same time.

Kennedy

A growing number of high-profile (and other) parents are choosing to honor their musical idols, such as Hendrix, Presley, Jagger, and now Lennon. Lennon first came to notice when Liam Gallagher and Patsy Kensit used it for their son in 1999, and singer-musician Adam Pascal followed their lead in two years later. Thanks in part to female singer and actress Lennon Stella, it's now more popular for girls than for boys.
 Lennon made it onto the popularity list in 2008. 
 In addition to its obvious Beatles connection, Lennon has a nice lemony feel.

Lennon

Liam is the top boys' name in the US, holding the Number 1 spot for the past five 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

In the US, London is popular for both sexes, though as the name rises for girls, it's levelled off for boys. Of course, London is far less popular in  the UK and other English-speaking countries.

London

Kate and William shocked the world when they announced that they'd named their third child Louis -- Prince Louis Arthur Charles, to be more precise. But we've been predicting a comeback for this classic name for a long time. Both Louis and Lewis are already quite popular again in Britain. And several other high-profile parents —like actors Sandra Bullock and Bill Pullman— beat the Duke and Duchess to the punch by naming their sons Louis years ago. While the pronunciation in Britain is normally the French LOO-ee, in the US the final S is often pronounced. To get around the pronunciation confusion, many parents especially In the UK, go with the forms Louie or Lewis, with Louie ranking even higher than Louis. Lewis is in the Scottish Top 10.

Louis

An Old Testament name with a Gaelic lilt, Malachi entered the list in 1987.
 In the Bible, Malachi (pronounced with the final syllable as EYE), was the last of the twelve Hebrew prophets, who foretold the coming of Christ. 
 In Anthony Trollope's Phineas Finn, Malachi is the name of the hero's father, and in James Joyce's Ulysses, Malachi Mulligan is a medical student. The lighter-hearted Irish version is usually spelled Malachy.

Malachi

Niall is pronounced nye-al--something like Neil, but this Irish spelling of the name makes it much more current and cool.
 This is an ancient name borne by several of the high kings of Tara, the most famous of whom was the powerful semi-mythological fifth century king known as Niall of the Nine Hostages, ancestor of all the O'Neills and MacNeills that followed.
 Niall Ferguson is a respected English historian, one of Time magazine's 100 Most Influential People in the World in 2004.

Niall

The friendly and sporty feeling Nolan blends some of the best qualities of other popular boy names. With the gentle but energetic sounds of Noah, a hint of the classic Nicholas, and the cool, surname-style vibe of Greyson or Colton, it makes for a familiar and grounded choice. 
Popularized by the baseball player, Nolan Ryan, Nolan has been steadily climbing up the charts since the 1970s, and it entered the US Top 100 in 2011. While it has never been a Top 50 name, it is given to a substantial 5000 babies every year. 
Nolan is the Anglicized form of the Irish name Nuallán, meaning “noble and famous” or “champion.” 
This could give you the fun option of nickname Champ, while also providing the name with weight and history: the O’Nolans were once a chiefly Irish family, descended from the first Celts to settle in Ireland. 
A once very American feeling choice, Nolan is now more popular in France and Canada. It is on the rise in England and Wales too, a favorite in The Netherlands and Belgium, and at #22 in Hungary (albeit with the Hungarian spelling, Nolen). 
Notable Nolans include the fashion designer, Nolan Miller; the Modern Family actor, Nolan Gould; Marvel and DC voice actor, Nolan North; and the actor and singer Nolan Gerard Funk of Glee fame. Some may associate it with the Nolan Chart, a political spectrum diagram invented in the 60’s, while others may be more familiar with Nolan Chance, from the game Fortnite. 
Familiar and cool, grounded and approachable, Nolan continues to hold its steady place in the lower end of the US Top 100. 
Do you love Nolan but want some more inspiration? Other names inspired by Irish surnames include Nevan, Blaine, Riordan, Donnovan, and Callahan. For names that share a similar sound, Bowen, Milan, Noel, or Roland might appeal.

Nolan

Quinn is an engaging Celtic surname that is on the rise for both genders. Quinn has started leaning decidedly toward the feminine thanks to a female cheerleader character on the television show Glee. It retains some testosterone from "The Mighty Quinn," the name of a movie, a band, and a Bob Dylan song. 
 Sharon Stone has a son named Quinn. Other ideas for boyish names like Quinn: Quinton, Quincy, Finn.

Quinn

More authentic and original form of Ryan, but far less common of the two spellings.

Rian

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

While the Rowan spelling is in the Top 1000 for both boys and girls, this spelling is much more unusual and more heavily weighted toward the boys' side. That may be because of its spelling similarity to stylish brothers Owen and Bowen.

Rowen climbed onto the Top 1000 for boys in 2010 and is trending upwards.

Rowen

Parents who have tired of Sean are now contemplating Seamus, the Irish form of James, which has a lot more substance and verve.
 One of the name's most famous bearers is the 1995 Nobel Prize-winning Irish poet Seamus Heaney. Seamus is also a Harry Potter name—Seamus Finnigan is a half-blood wizard friend of Harry's.
 At a time when the police force was predominantly Irish, "shamus" became a slang term for a detective.

Seamus

The name of the longest river in the British Isles rose to the US Top 25 for girls in the 1970s and the Top 100 for boys, but has fallen off the Top 1000 for both genders. At the latest count, the name Shannon was given to about 200 babies in the US, about a third of those boys. 

As a favorite Irish name, Shannon has now been supplanted by newcomers such as Saoirse and Seanan.

Shannon

Sinatra

Actress Jaime King gave her son Leo the middle name Thames, for the famous London river where she and her husband Kyle Newman were married.  Thames is pronounced tehms, not necessarily common knowledge in the US. The etymology of the word Thames is uncertain, and may mean dark but more likely stems from an ancient word for river.

Thames

As unlikely as it may seem, Theodore is a hot new hit name, vaulting into the Top 10 in 2021 for the first time ever. Friendly nickname Theo may be responsible for some of that, though there are plenty of baby boys given Theo as their full name too. Add their numbers together, and the two names jump to Number 6.

Theodore is a derivative of the Latin Theodorus, a variation of the Greek name Theodōros. The components are from the Greek words theos, meaning "God," and dōron, meaning "gift," giving Theodore the meaning "God-given" or "gift of God." Names with similar origins include Theodora, Dorothy, and Dorothea.
 
When Theodore Roosevelt took office in 1901, the name Theodore was in the Top 40 <a href="https://nameberry.com/boys-names">boy names</a>, with Teds and Teddys everywhere. After some damaging stereotypes—the chubby Chipmunk Theodore and Beaver Cleaver's real name—Theodore went into a decline, from which it has definitely made a recovery, thanks in part to the popular and likable nickname Theo.
 Theodore has been the choice of several celebrities, including Ivanka Trump, Bryce Dallas Howard, Natascha McElhone, and Ali Larter, not to mention being the fictional son of Christian and Ana in Fifty Shades of Grey.
 The name has a distinguished history. In addition to being presidential, it was borne by novelist Dreiser, poet Roethke, and French painter Gericault, and it was the first name (spelled Theodor) of Dr. Seuss.
 Among the well-known Teds, baseball's Williams and musician Nugent were born Theodore, but Ted Turner was christened Robert, and Ted Kennedy and Ted Danson were originally Edward.
 The beloved character Laurie in Little Women was named Theodore Laurence.

Theodore

Thatirishwriter's list "Buachaillí" of 44 great name ideas: Aiden - Theodore!