Chessni \ch(e)-ss-ni\ as a girl's name is a variant of Chesney (Old English). See for meaning of Chessni.
The baby name Chessni sounds like Chessnie and Chesni. Other similar baby names are Chessli, Chessie, Chesslie, Chesli, Chessney, Chessnea, Chesnie, Chessa, Chessy and Chesna.