Riley—an upbeat, friendly surname name—is red hot for girls and still going strong for boys. If you haven't been spending much time around babies recently, you may be surprised to learn that Riley is the most popular girls' name starting with R and also the Number 1 Irish name for girls in the US.

Asher—an excellent, soft and sensitive Old Testament choice—is a baby boy name on the rise, and is a Nameberry biblical favorite.

Quinn is an engaging Celtic surname, zippy, concise and strong. While it may now lean feminine in the US, given to girls about 80% of the time, it is still given to a substantial number of boys: 615 in a recent count.

Arden, the name of the magical forest in Shakespeare's As You Like It, is a stylish A name with a strong, straightforward image. Another reason to love Arden: its similarity to "ardent." Arden is solidly unisex, with the current gender distribution running about 49 percent girls and 51 percent boys.

One of the first generation of surname names, along with Porter and Morgan, Parker's still one of the most appealing and remains firmly in the Top 100 for boys. About three times as many boys as girls get this occupational name. The association with Charlie Parker gives Parker itself a jazzy edge, and it also has a nature-related meaning. Rosie O'Donnell has a son named Parker.

Blythe is Nameberry gem — one of those names that visitors to the site are often searching for, despite the fact it's never ranked in the US charts as a given name.

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.

Emerson is a dignified, somewhat serious name associated with transcendental thinker Ralph Waldo Emerson. Much more popular now for girls since Desperate Housewife Teri Hatcher used it for her daughter, it is definitely still a viable boys name.

Avery is a hugely popular name in the US, especially for girls. But while nearly four times as many girls as boys are named Avery today Avery's popularity is starting to soften for girls while it continues to strengthen for boys.

Arden is a gender-neutral name that's sleek and stylish but always seems to bob just below the surface of popularity, despite ticking all the boxes with its fashionable two-syllable, N-ending shape and its awesome nature-inspired meanings. In recent US statistics, 51 percent of the babies named Arden were boys to 59 percent girls.

Arlo, an unexpectedly popular name for boys these days, is also finding new life as a girls' name. The first name Arlo may be rooted in the surname Arlow or the place name Aherlow, meaning "between two highlands". As a surname, it also has roots in a place name meaning "rocky hill".

While Marlowe (and Marlow and Marlo) are surname names that are not intrinsically or traditionally gendered and so in theory work equally well for boys and girls. About 10 percent of the babies named Marlowe are boys, while Marlow is 25 percent male and Marlo is about 50-50.

One of the first generation of cool surname names, now largely used for girls in the US, but still popular for boys in its native Scotland. A prominent association for Brits is former prime minister Tony Blair, who was leader at the time of the Iraq War.

There is a female figure in the Old Testament named Noa or Noah, whose name derives from the Hebrew No'ah, meaning "motion". The popular Biblical male name Noah (sometimes spelled as the streamlined Noa) is derived from a different Hebrew name: Noach, which means "rest, repose" – although confusingly they are often written the same in English.

Climbing the charts for boys, and has just begun to cross over for girls, despite the macho "hud" sound followed by the "son" syllable.

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.

Vale is part place name, part nature name -- a poetic term for a type of valley. Today Show coanchor Savannah Guthrie put Vale on the baby name map when she chose it for her daughter, but there's no reason the name can't work equally well for a boy. Vale might also be a short form for Valentine or a spelling variation of the city name Vail.

Finlay is a Scottish royal name: it belonged to Macbeth's father, Finlay MacRory--or Findlaech mac Ruaidri--that has a bit of a split personality. It has two acceptable spellings--Finlay and Finley, the first more popular in its native Scotland, where it ranks in the Top 10, the second in the US. It is also becoming more and more unisex in the States, with the Finley spelling now split between girls and boys, while Finlay was used last year for TEN TIMES as many boys as girls, about 50 to only five.

Oakley, with its nature name roots and its Annie Oakley charm, is a hot name for both genders but more than twice as popular for girls. This name made it into the Top 1000 for the first time in 2013, one of only four girl names starting with O to rank that high. A decade letter, it's aiming for the Top 100.

Swanky sound via New York's ritzy Sutton Place. It fits with current popular boys’ names, due to its two syllables and -on ending. It debuted in the US Top 1000 for boys in 2015, though it is currently more popular for girls.