Turner -- who was born in Nutbush, Tennessee -- has been living in Zurich since the mid-90s ... and according to multiple reports, she's decided to make Switzerland her permanent home.
According to a local Swiss newspaper, officials in Switzerland have already decided to GRANT Turner's request for citizenship ... and now it's only a matter of time before the move becomes official.
We called Turner's rep for comment -- who told us she was still trying to get in touch with Tina to clarify the situation.
Also ... yeah, William Tell was Swiss. The more you know ...