Ada is one of the classic baby names for girls that is suddenly super stylish again. A favorite at the end of the nineteenth century, Ada is an alternative to the over-popular Ava. Ada is also part of the trend toward simple, old-fashioned names beginning with a vowel, like Ivy and Ella.

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.

Adelina is back in the Top 1000 after an absence of nearly a century, thanks to the meteoric rise of her sister name Adeline -- along with Adelaide, Adele, and Ada.

Newly fashioned but familiar and with an on-trend, unisex feel, Addison seems like the perfect solution for anyone who can't decide between Madison, Adeline, and Alison.

Credit the award-winning single-named British singer for taking the girls’ name Adele from a quiet semi-retirement back into currency. Adele reentered the US Top 1000 popular baby names in 2011 and has remained there ever since.

Old-fashioned nickname with sweet turn-of-the-last-century charm that's become a favorite among the popular girl names starting with A of today. In fact, with all spellings of Adeline/Adalynn taken together firmly in the Top 10, and Adelaide and Addison also high in the charts, Addie is one of the most frequently-heard short forms around. But no matter how popular (or pandemic) it gets, Addie is undeniably one of the cutest names for baby girls. Little girls might like the fact that it's the name, though spelled Addy, of an American Girl series doll.

A long-integrated French feminine form of Adrian, now overshadowed by the a-ending version, but still a valid option, with considerable substance and dignity—though these days more parents would probably choose Adriana.

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.

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.

This popular form of the even-more-popular Adeline combines the trendy Ad- prefix with the equally trendy -lynn suffix. Adalynn is the second most widely-used form of this popular name next to the classic Adeline. Singer Chris Daughtry named his daughter Adalynn Rose.

Another spin on the mega-popular Adeline names, this form could stop any confusion about whether the ending is said lin, line, or leen, though with Adeline, Adaline, Adelyn, Adalyn, Adelina, and Adalynn all ranking above it, it may well be one of the last spellings people assume.

A unisex name with lots of flair and a daring spirit, Adair was first noticed as a girl's name in the 1980's, thanks to the long-running daytime drama Search for Tomorrow, with the character Adair McCleary, who had ahead-of-their-time brothers named brothers Hogan, Cagney and Quinn. Given to just 22 girls in a recent year (along with 59 boys), it remains a familiar but quietly used choice.

Variation of the very trendy Addison, perhaps lending itself more obviously to the nickname Addy.

Many girls' names beginning with Ad- are enjoying newfound popularity, mainly Adelaide, Adeline, and Ada. Adalaide is a spelling that bridges the gap between Ada and Adelaide, which in German come from the same root.

Adelynn is one of the many variations rising on the heels of the lovely, old-fashioned (and yes, sweet) name Adeline.

The sweet old-fashioned Adeline is one of the prime up-and-coming vintage baby names; Addilynn is a phonetic spelling.