Maren is one of the many twenty-first-century takes on Mary--but we find the more classic Marin spelling preferable. When spelled Maren, the pronunciation seems more clearly to resemble Mary, with the emphasis on the first syllable. Marin, the spelling also used for the beautiful coastal county north of San Francisco, is often pronounced with the emphasis on the second syllable, as in Marie.

Though greatly overshadowed by the trendy Olivia, Olive has a quiet, subtle appeal of its own -- and is now enjoying a remarkable comeback. Olive is one of only four girl names starting with O on the US Top 1000. Cool couple Isla Fisher and Sacha Baron Cohen chose it for their daughter, reviving the name to stylishness, and now Drew Barrymore has a little Olive too, as has country singer Jake Owen.

Spelled with either one 'l' or two, Calista came to the fore in 1997 when Calista Flockhart hit it big as Ally McBeal. Flockhart, who bears her mother's middle name, didn't just introduce a name, she introduced a whole sensibility. Pretty and delicate, Calista is definitely worthy of consideration, especially for parents with Greek roots.