Adeline has a lovely, old-fashioned "Sweet Adeline" charm, but has become so popular in the US under so many spellings and variations -- with Adalynn and Adalyn also popular -- that considered together it is far more popular than it first seems. Adorable nickname Addie is also pervasive. 
Adeline originated as a French diminutive of Adele, which came from the Germanic root adal, meaning "noble." Adeline was introduced to England by the Normans in the eleventh century, was very common during the Middle Ages, then vanished until the Victorian Gothic revival. Common variants of Adeline include Adalynn, Adalyn, Adelyn, Adelynn, Adelina, and Adaline.
 Adeline was introduced to England by the Normans in the eleventh century, was very common during the Middle Ages, then vanished until the Victorian Gothic revival.
 The song "Sweet Adeline" Is an old barbershop quartet favorite. JFK's grandfather John F. Fitzgerald, mayor of Boston, made it his theme song, and Mickey Mouse serenaded Minnie with it in a 1929 cartoon.
 Pronounced ad-a-line in America, it's usually ad-a-LEEN in France.

Adeline

Aidan is an ancient Irish saint's name with a fire meaning that's mega popular for boys, most often spelled as Aiden. The name is occasionally used for girls, sometimes as Aidyn or Ayden, as well. Aidan was the name of a famous seventh-century Irish saint, and is related to the Irish word for fire.

Aidan

Now that Isla Fisher has pushed her once-obscure name into the Top 150, some parents are looking for similar-sounding <a href="https://nameberry.com/list/472/scottish-names-for-girls">Scottish names for girls</a> that are further off the beaten path. This one is especially promising, with its cross-cultural appeal. Ayla, a common name in Turkey, is also worth considering.

Aila

Alice is a classic literary name that's both strong and sweet, ranking in the US Top 100 and popular throughout the western world. Alice is derived from the Old French name Aalis, a diminutive of Adelais that itself came from the Germanic name Adalhaidis, which is composed of the Proto-Germanic elements aþala, meaning "noble," and haidu, "kind, appearance, type." 
 Alice is quite distinct among traditional <a href="https://nameberry.com/girls-names">girls’ names</a>—more feminine and dainty than Mary and Helen, more substantive than Ann or Jane, yet with more lightness and innocent charm than Margaret or Katharine. 
 
Alice has been riding a fresh wave of popularity, not only in the US and other English-speaking countries but in places as diverse as Italy, France, Brazil, and Sweden. That makes Alice a remarkably international choice.
 Alice is a darling of literature, from the immortal heroine in Alice in Wonderland to an unusual number of fine modern writers like Alices Munro, Walker, Sebold, Hoffman, McDermott, Adams, and Elliott Dark. In other fields, there were First Daughter Alice Roosevelt, painter Alice Neel, food innovator Alice Waters, and literary figure Alice B. Toklas, to name a few.
 As a British royal, Alice was Queen Victoria's second daughter, the princess who shocked her Victorian mother by breastfeeding her baby. More recently, Tina Fey helped popularize the name when she chose it for her daughter.

Alice

A possible Born Again name -- Amen -- in the same class as the still-popular Nevaeh (that's Heaven spelled backwards) and Trinity. 

Amena

Putting the emphasis on the "elle" softens a name that seems at once futuristic and medieval.

Axelle

Bright, fresh, and sunny, Ayla is a fashionable choice for girls. Reminiscent of other trending names such as Layla, Isla, and Ava, Ayla has recently found its place in the Top 100. 
At first glance, Ayla appears to be short, sweet, and simple – a modern invention, perhaps – but don’t be deceived. Like many names, it has different pronunciations and various origins, making it an exciting and international choice. 
In Turkish, Ayla is pronounced “Eye-luh”, meaning “halo” or “moonlight,” whereas in Hebrew, it could be a modern take on the Biblical “Elah” meaning “terebinth tree,” from “Alon” meaning “oak tree”, or, from “Ayelet” or “Ayala” meaning “doe, deer, gazelle.” 
Alternatively, Ayla is a literary name, created by Jean. M. Auel, for her novel Clan of the Cave Bear.” Pronounced “Ay-luh,” the independent heroine inspired American parents to use the name, and following the release of the film adaptation in 1986, it leapt straight into the Top 600. 
Internationally popular, Ayla ranks highly in the UK, Sweden and Azerbaijan, and is on the rise in France and Belgium. 
 In the US, over 2500 girls are given the name each year, meaning it has more than doubled in usage over the last decade. 
Notable namesakes include the American singer, Ayla Brown and the Turkish politician and activist, Ayla Akat Ata. A popular choice among influencers too, “The Flo Fam”, “Sunkissed Mama,”, and “The Prince Family” all have daughters called Ayla. 
As lovely as the name is, in its own right and as an alternative to a Top 10 choice, it may be worth keeping in mind how similar Ayla’s sounds are to those high-ranking names. This couldlead to confusion between Ava/Isla/Ayla, or to Ayla feeling more popular than it actually is. 
If you do love Ayla but want to stand out from the crowd a little more, you could consider Mira, Eira, Liora, Alara, Miray, or Aviya for their similarity in sound or feel.

Ayla

In the USA, Blair is gaining momentum, rising quickly for the last 10 years and likely to continue to climb. In England and Wales, where Blair has political connotations – calling to mind former prime minister Tony Blair – it is much less common, although it is in use for boys in its native Scotland.

 Blair has a chic and tailored feel in line with other trending gender-neutral one-syllable girl names like Sloane, Quinn, Sage, and Reese. A notable pop culture namesake in recent years is Leighton Meester's upper-crusty character in Gossip Girls.

 Blair was first popularized as a girl's name in the 80s, cracking the Top 500 for a few years before falling off again. Blair re-entered the charts in 2011 and has been rising since. Blair has a longer history as a boy's name, with consistent use as early as the 1800s, and the name stayed on the charts until the mid 90s.

Blair

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

Eliana is a lilting, rhythmic choice, which has caught on in the US and other English-speaking countries, along with many other El-starting names.
 
The Hebrew name Eliana was taken from the elements el, meaning "God" and ana, meaning "answered." Eliana also has roots as a variation of the Late Latin name Aeliana, a feminization of the male given name Aelianus, itself derived from the Roman family name Aelius. Aelius is related to the Greek word helios, which refers to the Sun.
 A widely multi-cultural choice, Eliana is heard in Israel, Spain, Portugal, Russia and Italy. The pretty French version is Eliane.
 One celebrity who chose it for his daughter is Christian Slater.

Eliana

Evander is a name that could build on the popularity of shorter form Evan, and could work and play well with schoolmates like Zander and Xander.
 Evander was prominent in Greek and Roman mythology: in classical lore Evander was a wise Arcadian hero who founded the city in Italy that preceded Rome, appearing in Virgil's Aeneid.
 Evander also derives from a Norse name meaning bow warrior.
 In modern times, the name has been associated with boxing champ Evander Holyfield.
 Evander could make a more distinctive aternative to Alexander.

Evander

Evelyn derives from the French feminine given name Aveline, which is from an obscure Germanic root which may mean "desired, wished for" or "water, island". The name Aveline was brought over to England by the Normans, but it first became popular as a masculine name – a transferred use of the surname Evelyn, which comes from the same source. Variations include Evaline, Evalyn, Evelin, and Eveline.
 
After decades of disuse, soft and feminine Evelyn has returned to the baby name stage in a huge way. It reached the Top 10 for the first time in 2017. Evelyn has now surpassed its former heights, joining a legion of contemporary little Evas, Avas, Eves, Evies, and Evelines. All this despite having returned to the Top 40 for the first time since 1939 less than a decade ago.
 
Formerly a predominantly masculine name, its most famous bearer is writer Evelyn (EEV-lin) Waugh. (Trivia note: Evelyn Waugh was married to a woman named Evelyn, and they were known as 'He-velyn" and "She-velyn'.) Its quiet persona was reversed with the character Evelyn Salt, played by Angelina Jolie. Bruce Willis chose it for his fifth daughter and Carey Mulligan used it for hers.

Evelyn

Fallon was one of the first of the unisex surname names, but thanks to "Dynasty" in the 1980s it now has a feminine image.  For a boy, try Phelan instead. 

Fallon

Fallon is one of several boyish surname names introduced in the over-the-top 1980s nighttime soap Dynasty: they sounded cutting-edge at the time, but no longer.

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

Finella and cousin Fenella, which are found most often in Scotland, would make pleasing imports.

Finella

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

Marcella has been in mothballs for so long it's starting to feel stylish again. Depicted as the world's most beautiful woman in Don Quixote (where it's spelled Marcela), this long neglected name seemed dated for decades but just might be ready for restoration. Another so-old-it's-new-again relative: Marcellina. Saint Marcella was a Roman matron of strength and intellect who organized a religious sisterhood at her mansion, which St. Jerome guided in religion and learning.

Marcella

Megan originally evolved from Meg, which itself derived as a nickname for Margaret. Margaret ultimately comes from the Greek word margarites, meaning "pearl." Megan is no longer a common nickname for Margaret—it is most often used as a full name. Other spellings include Meghan, Meagan, Megyn, and Meaghan.
 
One of the most popular <a href="https://nameberry.com/baby-names/172/welsh-names">Welsh names</a> ever in the US—it was Number 10 in the 1990s—Megan is still widely used today, but waning. It fell to its lowest ranking in 50 years in 2017. Actress Megan Fox has upped its glam factor. We've yet to see how the popularity of the new Duchess of Sussex, Meghan Markle, affects all the spellings of her name.

Megan

Nora is a lovely, refined name that conjures up images of Belle Epoch ladies in fur-trimmed coats skating in Central Park. Long seen as a quintessentially Irish name though its roots are not in Ireland, Nora is a quietly stylish favorite that's tiptoed to the top of the popularity ladder.
 
Nora has two separate origin stories, as a derivative of both Honora and Eleanor. The Irish and Anglo-Norman version derives from Honora, based on the Latin word honor. The Hungarians spawned Nora as a short form of Eleonora, a variation of Eleanor.
 One of Nora's most prominent contemporary namesakes is the late witty writer Nora Ephron. Other notable Noras are the independent Ibsen heroine of A Doll's House, and the female half of the witty Nick and Nora Charles duo, adding up to a most desirable choice. 
 It can also be spelled Norah, as in Norah Jones.

Nora

Oriana is a dashing medieval name, with a meaning similar to Aurora. At this point, though, Oriana is much more unusual than Aurora and makes a unique choice if you're searching for <a href="https://nameberry.com/list/316/baby-names-that-mean-new-beginnings?all=1">names that mean new beginnings</a> or dawn. Strong and evocative, Oriana also has an admirable literary resume. In medieval tales, she was the beloved of the knight Amadis, she appears in at least three seventeenth century plays, and there is an early Tennyson poem called The Ballad of Oriana. Oriana was also sometimes used to refer to Queen Elizabeth I. Oriana Fallaci was a feminist Italian journalist who interviewed many world leaders in the 1960s, 70s, and 80s.

Oriana

Orla is an Irish name closely associated with the high king Brian Boru, as it was the name of his sister, daughter and niece. It was very popular in the Middle Ages – the fourth most popular name in twelfth century Ireland – and has become popular again in Ireland, Scotland, England and Wales today. In Irish, the name is commonly spelled Orlaith or Orlagh.
 There is a student at Hogwarts School named Orla Quirke in the Harry Potterbooks.

Orla

Pearl, like Ruby, has begun to be polished up for a new generation of fashionable children after a century of jewelry box storage. The birthstone for the month of June, Pearl could also make a fresher middle name alternative to the overused Rose. Cool couple Maya Rudolph and Paul Thomas Anderson named their daughter Pearl Minnie, followed by Jack Osbourne, and several celebs have put it in the middle spot, as in Busy Philipps's Cricket Pearl, Jake Owen's Olive Pearl and Caleb Followill's Dixie Pearl .
After being a Top 25 name in the late nineteenth century, Pearl went into a long slide, but is showing signs of a strong comeback -- it reentered the Top 1000 in 2010.
 In Nathaniel Hawthorne's The Scarlet Letter, Pearl is the illegitimate daughter of Hester Prynne, who gives her the name because she is 'her mother's only treasure.'
 Pearl was also the alter ego name of Janis Joplin, tied to singer Pearl Bailey, and---hmm--the birth name of western writer Zane Gray.
 Variations are PERLE and PERLA.

Pearl

Riona

Shane ambled into the picture via the 1953 movie, adding a cowboy twist to its Irish essence. Shane is even more popular in Ireland than in the USA or the UK.
Singer Siobhan O'Connor and actor Kevin Sorbo have sons named Shane. 

Shane

One of the first luxury brand names and the quintessential Booming Eighties status-conscious moniker; used by Donald Trump for his daughter, Tiffany has plummeted far from its high in the Top 25.
 
Tiffany first entered the Top 1000 in 1962, following the release of Breakfast at Tiffany's in 1961.

Tiffany

This unusual name found in Scottish poetry would make a distinctive Gaelic pick. 

Vevina

This friendlier Celtic version of Edmund has an upbeat feel and a good chance of competing with Aidan and Damon sometime soon. 

Éamon

Tiffanyross's list "Baby two" of 28 great name ideas: Adeline - Éamon!