Maddox, a previously obscure Welsh family name with a powerfully masculine image, suddenly came into the spotlight when Angelina Jolie chose it for her son in 2003. By the following year it was in the middle of the Top 1000, and it has risen since.

The possibility of the nickname Maddy (or the even spunkier Moxie) makes this have some potential as a modern, unisex name for a girl - if you can get past the strongly masculine meaning.