Beau suggests someone devilishly handsome, with a large measure of southern charm—a nice image to bestow on your boy. Often solely a nickname in the past, it's now standing firmly on its own. Beau has been on the Social Security list non-stop since 1969.

Kate and William shocked the world when they announced that they'd named their third child Louis, or Prince Louis Arthur Charles, to be more precise. But we've been predicting a comeback for this classic name for a long time.

Sophisticated and sweet, delicate but substantial, Madeleine is the classic French variation of Magdalene.

Lisette, also spelled Lizette, is a dainty,, if somewhat dated, Gallic offshoot of Elizabeth. It reached its U.S. peak of popularity in 1999, then fell off the list in 2001.