Baby

Once a popular choice in for boys in the Middle Ages and again during the 19th century, Aubrey has mostly been used for girls in the US since the 1970's. With its arty, surname-y, and sophisticated feel, however, it is rising up the UK charts for both boys and girls.

The poetic, soft-spoken Auden has recently started to be considered as a first name option, used for both sexes, appreciated for its pleasing sound as well as its link to the distinguished modern Anglo-American poet W.H. Auden.

Avery is a unisex name that is used four times as often today for girls as for boys. But while Avery's popularity is starting to soften for girls, it continues to get stronger for boys -- in keeping with our finding that gender neutral names are becoming more favored for boys than for girls.

This Biblical name was rising dramatically for boys, but has plateaued in recent years. Although it's more popular for girls, it's a delightful unisex choice. Eden is one of the Top 100 Boy Names in France.

Ellis is a former Old Man Name turned gender-neutral choice for the 21st century. It's one of the less used names in the currently popular El-family.

Kai is an internationally flexible name with many possible origins and meanings, growing in popularity in the US and a diverse range of European countries.

Though the Mischa spelling is migrating toward the feminine side thanks to actress Mischa Barton, this Russian boys' short form still works for children of both sexes, as Mischa or Misha.