Blythe's Sister

While theoretically unisex, this surname name has been edging up the girls’ names list, perhaps originally as an Ashley substitute. One quality in Ainsley's favor: It's remained steadily popular -- but not TOO popular -- for more than 20 years now, ranking consistently around Number 400. That makes it stylish and familiar without showing up everywhere.

Used primarily in Scotland, and represented here by singer Audra McDonald, the girls' name Audra has been overshadowed by the return of the classic Audrey. Audra may be to Audrey what Jenna is to Jennifer and Jessa is to Jessica: A variation that will rise as the original falls from favor, which may take another decade.

Claire, luminous, simple, and strong, is one of those special names that is familiar yet distinctive, feminine but not frilly, combining historical depth with a modern edge. And though Claire is enjoying revived popularity, it will never be seen as trendy. Claire is also a great middle name choice.

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.

Brooke Shields chose this name for her younger daughter. It's one of the original androgynous movie star names, precursor to Drew and Glenn and Cameron, borne by Greer Garson.

Hadley, most famous as the name of Ernest Hemingway's first wife, is more sophisticated, professional, and modern than cousins Harley, Haley, or Hayden. The hit book The Paris Wife, a novel by Paula McLain told from the point of view of Hadley Hemingway (born Elizabeth Hadley Richardson), has helped popularize the name, which also appears on the vampire show True Blood. Hadley could become this generation's Hailey. Adley, a mashup of Hadley and Addie, has also appeared on the scene.

Presley is a much more popular name for little girls than you might think, entering the charts as a girls' name in 1998 and hovering around Number 200 for the last decade.

Presley is one of a large cohort of surnames ending in -ley that are now trending as girl names, from Paisley to Hadley to Finley.

Country singer Tanya Tucker started the Presley-for-girls trend when she chose the name for her now-grown daughter, Presley Tanita.

Sloane is a sleek, sophisticated surname name that has gradually morphed over to the girls' side. Sloane is definitely a name that's going to continue to rise. Spelled without the final "e," Sloan joined Sloane in the Top 1000 for the first time in 2011.

Tatum is strong, distinctive, energetic, and recommended, especially if your last name is as congenial as O'Neal. The name is now used for both genders, with the balance running about two to one in favor of the girls.