Christy \ch-ris-ty, chr(i)-sty\ as a boy's name (also used as girl's name Christy), is a variant of Christian (Latin) and Christie (Scottish, Irish, Greek), and the meaning of Christy is "follower of Christ; bearing Christ".
The baby name Christy sounds like Cristy and Christo. Other similar baby names are Chris, Chriss, Christos, Christer, Christan and Christof.