Adalyn is one of a large group of Ad-beginning names for girls, which include Adeline and Adalynn and Adelaide and Addison — essentially, anything leading to the popular nickname Addie is in. Adalyn is a beautiful name, but be prepared to have to spell it out for people often.

Adalyn entered the charts in 2007 and rose quickly, but has been fairly steady in the mid 100s for nearly 10 years now.

Adalyn

Adeline in all its forms, including Adelyn, is rocketing up the list, but we do prefer the original to the variations.  Or you might consider varying it yet further to Adelia, Adele, or Adelaide. Or lengthen it to Madeline/Madelyn.

Adelyn

Though it relates to the Irish original, Ashlyn and its next most popular form, Ashlynn, owe more of their popularity as baby names in the US to the megastar Ashley, though all three have been dropping on the charts lately.

Ashlyn

One of the most girlish offshoots of Braeden.

Braelyn

It may be the hippest of hispter neighborhoods, but as a baby name Brooklyn is now on the decline: down from a peak of 120 births for boys in 1999, and over 7000 births for girls in 2011. 

The most famous male bearer of this name is the eldest child of David and Victoria Beckham, now a successful model and photographer in his own right. The name is now overwhelmingly female, given to 3200 baby girls and only 57 boys last year.

Brooks would be an on-trend alternative for a baby boy.

Brooklyn

The phonetic Carolyn spelling, which was very popular from the 1920s to the '60s, has been steadily on the wane while Caroline herself has stayed strong. 
 Carolyn Keene was the pseudonymous author of the Nancy Drew Books; Carolyn Jones played Morticia Addams on TV's The Addams Family.

Carolyn

Cherilyn

Feels like a hybrid. Better go for Edith or Evelyn. 

Edlyn

Gentle and poetic and often heard in Wales, Emlyn joins Emrys as soft, interesting alternatives to popular Em- names like Emmett and Emery.

Emlyn

Renowned English author Evelyn Waugh pronounced his name "EEV-lin" (fun fact: his first wife, also named Evelyn, was referred to as "She-velyn"). But "EV-uh-lin" also works, and is probably the most familiar pronunciation of the name today. 

It may be a Top 10 pick for girls right now, but in the 17th century, it was given more often to boys – as a surname name originally derived from the Norman given name Aveline. It was especially popular among the upper classes, where family surnames as given names were well used. 

Evelyn relates to the Norman French female name Aveline, the origins of which are not entirely clear. Theories include "desired" and "water, island".

Evelyn

Very popular in Wales; this could make a nice middle name in honor of a Grandpa Glenn. 

Glyn

One spelling variation that's more popular than the original, this somewhat old-fashioned name might be in honor of poet Gwendolyn Brooks, the first African-American to win a Pulitzer prize for poetry, or may be a way to get to the modern short form Gwen.
 In the Oscar Wilde play, the character's name is spelled the traditional Welsh way, Gwendolen, as it was for one of the principal characters in George Eliot's Daniel Deronda, and Gwendolen was also Merlin's wife in Arthurian legend.

Gwendolyn

A possible, and not too successful, attempt to individualize Jocelyn or formalize Jacey. 

Jacelyn

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

Variation of Jocelyn that confuses the pronunciation and looks less elegant. We recommend you stick with the beautiful original.

Joselyn

Much less popular than the original spelling of Jocelyn. While it might be tempting to go with this more phonetic spelling, we recommend sticking with the traditional name.

Joslyn

One of many modern spellings of Jocelyn, this one used by actress Samantha Harris for her daughter.

Josselyn

One of the most popular of the trendy Caitlin variations, Katelyn points directly to components Kate and Lyn --making it a bit more traditionally feminine.

Katelyn

Llewellyn/Llywelyn is a common patriotic first name in Wales, with its distinctive Welsh double LL's; in the U.S. Llewellyn would make a daring choice, though with the chance that some might find the ellen sound slightly feminine. 
 Two princes who played a great role in the medieval Welsh quest for independence were Llewelyn Fawr (Llewelyn the Great) and Llywelyn yr Olaf (Llywelyn the Last).
 Llewelyn Moss is a major character in Cormac McCarthy's No Country for Old Men, played on screen by Josh Brolin.
 Llewellyn, which can be spelled in a number of ways, has some appealing, if quirky, short forms as well--Llew, Lleu and Llelo.

Llewellyn

This phonetic spelling of a traditional Scottish male name wasn't seen until used by Vince Vaughn for his daughter. As Lachlan becomes more of an established boy's name in the US, more parents are turning to the Locklyn spelling on the girl's side.

Locklyn

Madelyn is the most popular current spelling of this stylish name -- Madeline is the second most used -- but we prefer the least popular and most authentic French version, Madeleine, which ranks third.

The advantage of Madelyn: It does clarify pronunciation and may be the best choice if you definitely want that last syllable pronounced as "lynn".

The disadvantage of this name, however you spell it: Its mega-popularity when all spellings are considered together. Roughly 10,000 baby girls were given some version of the name Madelyn in the US last year, making it equal to a Top 10 girl name.

Madelyn

For a name that was in the Top 20 for a whole decade – the 1930's – Marilyn has attained the status of almost a one-person name. Just say the name Marilyn, and most people will know who you mean. Yet strangely enough, though Marilyn Monroe (born Norma Jean and renamed in tribute to earlier star Marilyn Miller) was the sex symbol of her generation, very little stardust adhered to her name. In fact, when Mariah Carey wished to honor the star in her daughter's name, she chose to call her Monroe rather than Marilyn.
 There have, however, been a number of other notable Marilyns, including opera singer Horne, novelist French and lyricist Bergman--not to mention male musician Marilyn Manson (nee Brian). Actress Kim Novak was born Marilyn.
 The meaning of Mary is uncertain, but theories include "drop of the sea" (from Hebrew roots mar "drop" and yam "sea"); "bitter" (from Hebrew marah "bitterness"); and "beloved" (from the Egyptian root mr).

Marilyn

All the names ending in-lyn seem sadly dated. 

Merilyn

Male name that seems feminine enough to switch genders, if you're looking for a new lyn spin. 

Newlyn

Roselyn was a frequent member of the US Top 1000 in the early twentieth century until it dropped off the charts in 1954. It didn't return until 2003.
 This name takes Rosalind and makes it rosier. As with any creative variation, expect to spell the name anytime you meet someone new.

Roselyn

Spelling variations abound when a name is trendy, which Rosalind is not these days.  We say leave Roslyn back in the middle of the 20th century and reclaim the original Rosalind.

Roslyn

Kate_Elaine's list "Names Ending in "-Lyn"" of 26 great name ideas: Adalyn - Roslyn!

Names Ending in "-Lyn"

"-Lyn" is a trendy ending to many modern names, and there's a lot of combinations to choose from ranging from contemporary to classic. These are just a few of my favorites.