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This extra-L variation of Alan isn't quite as popular in the US as the original. Both spellings remain popular in Ireland and England.

Angela was a Top 10 name from 1965 to 1979, the fifth most popular name for three years, and staying in the double digits until the turn of the 21st century. Today, though, Angelina or Angelica would be more fashionable options.

Once a Top 100 name, this Spanish diminutive of Ana still retains some of her Latin flair. A notable namesake is noted attorney Anita Hill, another is the great jazz singer Anita O'Day. Plus there's Disney cred via the lead human character in 101 Dalmatians.

Ann, the name of the sainted mother of the Virgin Mary, was among the top girls’ names for centuries, in both the original English Ann spelling and the French Anne. Both left the Top 100 around 1970 and show no signs of returning, with Anne is the middle of the US Top 1000 and Ann dropped out of sight. Once a go-to middle name, Ann has lost its stature in that position as well. Still, it's one of the most common names for girls of the 20th century.

Popular in the US from the 1920s to the 1950s, Arlene is of uncertain origin and seems to be a modern innovation, perhaps based on names like Marlene and Darlene which were popular around the same time. Nowadays, the -lene names are mostly outdated, although the recent rise of retro Arlette could make Arlene seem plausible again as well.

Ava is one of the prime examples of a modern classic name, rising thought the course of a generation into the Top 10, where it has lingered for nearly 20 years.

If you can get the lively young Barbara Bush to replace her grandmother's white-haired image, you might discover a rhythmic classic with an interesting history. Barbara is undoubtedly among the most classic girl names starting with B.

A once-popular nickname for Albert and Bertram now being polished up by hip Brits, but still hibernating in the Land of Nerd over here.

After a century of association with horses and cows, this name just could be ready for revival by a fearless baby namer -- after all, it did happen to Jessie and Becky.

Combine the popularity of Betty White and Mad Men's glamorous Betty Draper Francis, with the residual sweetness of Ugly Betty's Betty Suarez, and the result is an impending return of the name. It's got presidential cred via Betty Ford and feminist history through Betty Friedan.

Billie is a tomboy nickname name, part of the growing trend for using boyish nicknames for girls and now destined for stardom along with its most famous contemporary bearer, music sensation Billie Eilish.

When Kate Hudson named her second son Bingham and announced that she would be calling him Bing, it put this zingy nickname name out on the table. Before that, there was only one, further nicknamed Der Bingle -- and he was really Harry Lillis Crosby.

Kids love Bob the Builder, but do they want to be Bob the Builder? Bob and Bobby have been out of style since the 1960s, but as vintage nickname-names -- Fred, Archie -- come back into vogue, Bob may tag along. Charlie Sheen used it for one of his twin sons.

Bobby is the quintessential mid-century nickname, the name of the son on Mad Men and overused to the point of cliche. Though Robert is still a highly popular choice, most Roberts today are called by their full name or Rob or Robbie rather than Bob or Bobby.

This is a name you get stuck with, not (we hope) one your parents choose for you.

Carmen has long been associated with the sensuous, tragic heroine of Bizet's opera, based on a novel by Prosper Merimee; more recently it has called to mind two other bombshells: Carmen Miranda (born Maria) and Carmen Electra (born Tara), as well as the great jazz singer Carmen McRae. In the celebrity baby name world, this classic Spanish name for girls was used by Hilaria and Alec Baldwin for their daughter.

Celeste is a softly pretty and somewhat quaint name with heavenly overtones, which kids might associate with Queen Celeste of Babar's elephant kingdom. She's a light and lovely choice that's finally getting noticed.

Charles derives from the Germanic name Karl, meaning "man" or "freeman", and is a royal name in multiple European countries. A famous early bearer is Charlemagne, King of the Franks and Lombards and then Roman Emperor in the 8th-9th centuries.

Cliff is a familiar, timeless short form -- never too popular, yet widely known -- that you might also think of as a geographical name ala Vale or Field.

This unusual spelling of a simple name is notable as the name of dancer Cyd Charisse, whose given name was Tula Ellice but whose brother's mispronunciation of Sis begat Sid. Famed dance teacher Arthur Freed varied it to Cyd.