Stacey f
English: of uncertain derivation, perhaps originating as a pet form of ANASTASIA (SEE Anastasia), and respelled as a result of association with EUSTACE (SEE Eustace). It is not clear why this name, together with its variants Stacy and Stacie, should have become so common in the 1970s and 1980s. It is now also occasionally used as a male name.
First names dictionary. 2012.