A strong, straightforward Irish unisex surname, with a merry glint in its eye, Reagan has been leaping up the popularity lists, to become one of the top girl names starting with R. Some will inevitably link it to President Ronald, but spell it Regan and it's a Shakespearean name: a daughter of King Lear.

Not too long ago, Temperance was found only on lists of Puritan baby names.

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.

The increasing popularity of Camila may have pushed this underrated Spanish name into the Top 1000 — though it remains far less popular than its feminine counterpart. A perfect familiar-but-rare choice.

St. Landry was a seventh century bishop of Paris, founder of the city's first hospital. The name is more familiar in recent years thanks to legendary Dallas Cowboys coach Tom Landry, an association that makes this a sports hero name, as well as a thoroughly masculine one. Landry is also in use for girls in the US. Landry is one of the oldest surnames in France, dating back to the medieval period, and is particularly popular among Cajun-Americans. It has been on the Social Security list since 2010.

Kellen is German in origin and Irish in spirit. Kellen has fallen a bit in popularity for boys since its peak in 2012, but it has possibilities for girls too. In fact, Kellen's similarity to such feminine names as Helen, Ellen, and Kelly makes it feel more unisex or even female, though Twilight actor Kellan Lutz has done much to popularize this name for boys.

Although often connected to the men's magazine title, Maxim is a chic and powerful name for a little boy. It's proving moderately popular too, having been in the Top 1000 in the US since the year 2000.

An interesting vowel combination lightens up Graham.

Simpler and less tied to the singer in this form, Aliya is a feminine form of the Arabic name Ali, meaning "lofty, sublime, high" or "exalted." Boosted to fame by the ill-fated singer, Aaliyah, and used across the Middle East, the US and the UK, Aliya is a powerful and pretty choice with a concise spelling.

Channing is a sophisticated surname name whose use is probably linked to actor Channing Tatum and Channing Crowder, former linebacker for the Miami Dolphins.

A unisex Hebrew name sometimes given in Israel to kids born under the goat sign of Capricorn; it's also spelled Yael/Ya'el.

Aidan in all its many splendored varieties, particularly Aiden, had a spectacular rise up the list, and the phonetic Ayden came along for the ride. It is also used in Turkey.

A Biblical name with a modern feel, Azaria is a spelling variation of the Hebrew name, Azariah. Used as a masculine name in the Bible, this spelling is now more commonly used on girls.

Jagger is a swaggering Rolling Stone of a name that's been picked up by a number of fellow celebs, including Lindsay Davenport and Brett Scallions--while Soleil Moon Frye pulled a gender switch when she bestowed it on her daughter. It's edgy with a touch of danger.

A Scottish surname name, more popular as the Presidential McKinley, meaning "son of the fair hero".

Bentley, a somewhat stuffy British surname, previously associated primarily with an incredibly expensive English car, has had a recent surge in popularity, thanks largely to the reality TV shows 16 and Pregnant and Teen Mom, with Bentley being the name of the son of breakout star Maci (another new favorite) Bookout.

Blending classic with contemporary elements, Alayna is considered a spin on the name Alana, which also draws inspiration from Elaine and Elena. An obscure choice until the 80s, it began to climb the charts after fencer Alayna Snell took part in the 1984 Olympics.

One of the most popular African names for boys, Kymani was in the US Top 1000 list from 2008 until 2016. Spelled Ky-mani, it's the name of Bob Marley's son.

This unusual name from the Nahuatl or Aztec language has one of the best meanings around. It sprang onto the US popularity list in 2006 and made a brief appearance in the Top 300 before sliding down a bit. It's popular in Mexico and with US Americans of Latino or Hispanic heritage, hitting on two big girl name trends in those communities: Ya- beginnings and -i endings.

An alternative spelling to the highly popular Aubrey that entered the US Top 1000 back in 2001 and peaked in 2012 when it neared the Top 300. More recently, it has dropped out of the charts, with Aubrey and Aubree holding favor.