She is not Cullen, but instead Rosalie Hale. Her middle name is never mentioned.
Rosalie Lillian Mcarty hale.
Rosalie Lilian Hale
I'm pretty sure it's Rosalie Lillian Hale
Rosalie's middle name is Lillian.
Rosalie isn't called Rosalie Cullen, she's Rosalie Hale.
Her full name is Rosalie Lillian McCarty Hale. (The McCarty comes from her marrige to Emmett, as that is his true last name.)
Rosalie Cullen's real name is Rosalie Lillian Hale.
Her name is Rosalie Hale.
Rosalie Cullen's whole name is Rosalie Hale. Yes, her original name was Rosalie Hale but then the Cullens adopted her and changed her last name to Cullen. Poof! So, now she is Rosalie Cullen.
vampires: Rosalie bella human: cynthia
Rosalie from the twilight saga's full name is Rosalie Lillian Hale.
Rosalie Mary Cullen Actually, it's Rosalie Lillian Hale. Rosalie is a Hale because she chose to keep her original last name.