Catherine is one of the oldest and most consistently well-used girls’ names, with endless variations and nicknames. The Catherine form feels more gently old-fashioned and feminine than the more popular K versions. Most stylish nickname for Catherine right now: Kate...or Cate, a la Blanchett.

Elizabeth is one of the most popular girls' names of all time, the female equivalent of James or William. Yet Elizabeth has so much going for it—rich history, broad appeal, and timeless style—that no matter how many little girls are named Lizzie, Eliza, and Beth, you can still make Elizabeth your own.

Along with Daniela, Michelle, Nicole, and Denise, Danielle was a big hit from the 1960s to the nineties, sitting comfortably in the Top 20 for several years. Parents then responded to its chic, sophisticated Gallic image, and though it has lost some of its sheen, it's still a widely used choice.