I sort of like
Flann on a girl. I once read a short story with a female character named
Flann. I wouldn't use it though; it reminds me of flan (
http://en.wikipedia.org/wiki/Flan)
Ennis is interesting. I love
Annis on a girl.
Ennis looks just a little off though... I think I may have been to a town called
Ennis once. Maybe that's why it doesn't seem very "namey" to me at the moment.