Still one of the most appealing short forms, which goes a long way toward explaining the sustained popularity of Matthew. Matt is perennially the popular guy in high school, friendly, attractive, and comfortable with a baseball. Matty or Mattie are cute for a younger boy.

Will has definitely replaced Bill, not only as a nickname for William but as a stand-alone name as well, partly thanks to England's Prince William, also known as Wills. Currently outside the Top 1000 in the US and the UK, it wouldn't feel totally out of style.

Trevor, a British standard, took a long time to cross the Atlantic, but finally began its rise here in the 1980s. It is now a thoroughly naturalized citizen, though it still retains a touch of Anglo class.

This is the original, more prosaic spelling, but the airier Claire now dominates.

Juan, the Spanish version of John, is ubiquitous in the Spanish-speaking world, and is familiar internationally via such references as Don Juan and San Juan.

Curtis is an attractive if somewhat dated surname name that has been borne by several significant musicians and athletes--think Curtis Mayfield, Curtis James Jackson III--aka 50 Cent, and also director Curtis Hanson.

Pronounced just like Jean in the English-speaking world, but as the more unusual zhahn in France, this has sailed away with the first wave of French favorites: Denise, Michelle, et soeurs.

Had a surge of popularity in the Dynasty days, now has subsided in the wake of fresher French choices like Destry and Delphine, though it retains its sense of sophistication. It's one of the most truly gender-neutral baby names right now.

A Top 100 name from the 1930s all the way through the 1950s, it's now firmly in Mom -- or Grandma -- land and supplanted for babies by Joanna.....or even great-grandmother Josephine. In its heyday, it had a host of variations, including JoAnn and Jo-Anne.

Rodney peaked at Number 33 in 1965 and has been on a steady decline ever since. As its popularity history indicates, this name is more fitting for someone born in the mid-twentieth century instead of the twenty-first century. It's likely this name will continue trending downward for another generation or two before it has its chance to turn back around.

This streamlined Italian and Spanish spelling of Louisa is currently very popular in Germany, Austria, Switzerland and Portugal, where it's usually spelt Luísa.

Though short and brisk, no nickname name could have a more creative image. Comic actor Chris O'Dowd named his son Art, as in his native Ireland it's used as a name on its own, separate from Arthur., coming from an ancient word for ""a bear,"" and used in the sense of ""outstanding warrior"" or ""champion."" A pagan High King of Ireland, Art’s rule was so honest that two angels hovered over him in battle.

Annette is a French diminutive of Ann which was among the first wave of widely-used girls' names from France, now neglected for so long that it's almost starting to feel stylish again.

Gently old-fashioned stand-alone nickname that owes its popularity to mega popular Abigail.

Football great Brett Favre single-handedly kept this name in the limelight, though it continues to sink in popularity.

Meg, perennially one of the Little Women, is a Margaret short form that manages to be neither quite in nor quite out of style. Meg is sleeker and more sophisticated than Maggie, more contemporary than Peg, more stylish than Megan, and still one of the best diminutives of Margaret.

Meg Ryan was born Margaret Mary Emily Anne.

A name halfway between its old milquetoast image and a more jovial Irish-sounding contemporary one.

Kristen may be somewhat past its fashion high point, but it remains forever crystalline clear. Possible problem: confusion with the similar Scandinavian names Kristin, Kirsten, Kirstie, et al.

An Irish and Welsh form of Catherine, Caitlin was a boom name of the eighties, rocketing from obscurity (Americans first heard it via the wife of doomed poet Dylan Thomas) to the height of popularity in the space of a decade. The original name was gradually eclipsed by its myriad spelling variations -- Katelyn and Kaitlyn both soon topping it on the popularity lists.

Esperanza is a Spanish classic that's found its way onto the national popularity list in recent years. It came into the spotlight not long ago when jazz singer Esperanza Spalding "stole" the Best New Artist Grammy from favorite Justin Bieber. It's also the name of the main character in the novel The House on Mango Street by Sandra Cisneros, about a young Latina growing up in Chicago.