Here is a thread started for female Yorkie names:
http://www.yorkietalk.com/forums/gen...es-female.html You will find a LOT of name ideas there!
Good luck! Some of my personal favs: Sadie, Maggie, Sophie, Abbey, Amy, Maddy, Darby, Katie, Ally, Bailey, Lexie, ... well I better start and let you go to the link above before I repeat it all here!