This name found in both Celtic and Scandinavian mythology has gone from all-boy to almost all-girl, retaining a strong, unisex quality. However, it has dropped following its three-decade heyday from the 1960s to the 1990s.

Taylor is one of the prime unisex surnames used for girls and has also been a soap opera favorite. Taylor was in the Top 10 for the last several years of the twentieth century, so that now it tends to feel a little nineties – though Taylor Swift is keeping it in the spotlight and Tay is a charming nickname. Garth Brooks and Bryan Cranston have daughters named Taylor; Taylor Schilling portrays lead Piper Chapman in Orange is the New Black.

Bailey — a jaunty surname — was first used for a female TV character in 1978 in the show WKRP in Cincinnaati, then caught on big time. Bailey's still an appealing choice, though, and a celebrity fave. Parents of daughters named Bailey include Scot Baio and Stella McCartney.

Drew is an elegant formerly male-only alternative to Andy that joined the stylishly upscale Paige-Brooke-Blair sorority, thanks largely to Drew Barrymore. Barrymore comes by her first name legitimately: it was the maiden name of her paternal great-grandmother, Georgiana 'Georgie' Drew Barrymore, one of many esteemed actors in her family history.

This ultrapopular boys' name is rapidly becoming a hot name for girls; admired for its buoyant Irish spirit.

Logan, with its appealing Scottish burr, is a very hot boys' name—it's in the national Top 10 and heading for Number 1 in some states—and can also make a rich and resonant choice for a girl. Jason and Jordan Mewes have a daughter named Logan Lee.

Yes, Spencer makes a plausible and powerful female choice these days, though it's still used four times as often for boys as for girls. But Spencer does not swim that far beneath the Top 1000, used for nearly 250 baby girls last year.

Boys' favorite retains more of its poetic, windswept quality when used for a girl, as Robin Wright and Sean Penn did. Alyssa Milano gave her daughter Elizabella Dylan as a middle name.

Originally used for children baptized in holy water from the river Jordan, it became one of the leading androgynous names of the nineties. As the balance tips toward the boys' side, it's slipping on the girls' popularity chart. Alternate spelling Jordyn is now more popular for girls.

Once the quintessential bouncy teenager name, Kelly helped launch the trend of unisex Irish names . But it now takes a backseat to more substantial surname names like Kennedy.

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 popular unisex names for girls as well as the top girls' name starting with K. This is one name that manages to sound trendy and classic at the same time.

A Scottish place and surname that was once adrogynous but now leans about 20 to 1 toward the girls' side, Leslie has a pleasant, heathery feel that kept it in or near the Top 100 for several decades; the Lesly and Lesley spellings are also frequently used, especially in Britain. While Leslie may not be the freshest name in the bunch, it's become a modern classic and is one of the surprising names always to have ranked among the US Top 1000 for girls.

Sawyer is one of the top unisex names, used for their daughters by such parents as Sara Gilbert, co-host of The Talk and former actress on Roseanne, currently on The Conners.

This surname gained momentum in the 1990s, when it was particularly in vogue for males. However, it seems to be experiencing a surge for females—it was one of the fastest-rising names of 2013, jumping 266 spots back into the Top 1000.

This spelling of Devon, as opposed to Devin or Devan, makes it a pretty and popular British place-name, evoking the beautiful county of farmlands and dramatic seascapes and moors in southwest England. A stylish ambi-gender name particularly well used in the early nineties, Devon remains an attractive option--though be aware that at this point in time, it is used more frequently for boys.

One of the original unisex Irish surname names, energetic Casey bounced onto the scene in the 1960s, then peaked in the 1980s for both boys and girls. Today Casey is having a resurgence for both girls and boys and re-entered the charts on the girls' side, likely due to the character Kayce Dutton (pronounced like Casey) on the hit show Yellowstone.

Originally an English surname, borrowed from the place name, Kendale, Kendall was given almost exclusively to boys until the 40s when it began to be used for a small number of girls each year. By the 80s, it was a gender-neutral choice, however, since the 1993 appearance of the character Kendall Hart in the soap opera All My Children, it has been leaning feminine.

In the early eighties, Lindsay, in tandem with Courtney, approached the Top 10.

One of the most evenly divided unisex names these days; strong and energetic, if overused, for both genders.

A newly successful name for girls, which, like Brayden and Caden, used to be strictly for the boys. Young Heroes and now Nashville star Hayden Panettiere planted it in the girls' camp.