Chantilly \ch(an)-tilly, chant(il)-ly\ as a girl's name. 
The baby name Chantilly sounds like Chantille and Chantill. Other similar baby names are Chantelle, Chantrill, Chantila, Chantil, Chantielle, Chantiel, Chantella, Chantell, Chantalle, Chantall and Shanilly.