The first name Christie is ♀ female and ♂ male.
Christie is a diminutive of names beginning with “Christ-“, e.g. Christian, Christopher, Christine oder Christina. Therefore Christie is a name for boys and girls.
Christie “a Christian” or “follower of Christ” and “anointed” (from ancient Greek “christós/χριστὸς” = anointed one or “chrio/χρίω” = to anoint, originally from Hebrew “mashákh/מָשַׁח”).