Chastney \ch(a)-st-ney, chas-tney\ as a girl's name is a variant of Chastity (Latin), and the meaning of Chastney is "pure".

The baby name Chastney sounds like Chastine, Chastina and Chastin. Other similar baby names are Chasty, Chastitey, Chastidy, Chastady, Chesney and Chessney.