The unisex Blake, which indeed has two conflicting meanings, has a briskly efficient image when used for a girl.

A strong, straightforward Irish unisex surname, with a merry glint in its eye, Reagan has been leaping up the popularity lists, to become one of the top girl names starting with R. Some will inevitably link it to President Ronald, but spell it Regan and it's a Shakespearean name: a daughter of King Lear.

Boys' favorite retains more of its poetic, windswept quality when used for a girl, as Robin Wright and Sean Penn did. Alyssa Milano gave her daughter Elizabella Dylan as a middle name.

A newly successful name for girls, which, like Brayden and Caden, used to be strictly for the boys. Young Heroes and now Nashville star Hayden Panettiere planted it in the girls' camp.