Blake
The unisex Blake, which indeed has two conflicting meanings, has a briskly efficient image when used for a girl.
Though in the eighties it was seen very much as a male name, epitomized by the character of Blake Carrington, the silver-haired, powerful patriarch of the TV soap Dynasty, and is still Number 73 for boys, these days it's more apt to be associated with Blake Lively, the attractive lead of the Gossip Girl series and the film Sisterhood of the Traveling Pants..

