Cassity is a distinctive girls' name in United States, ranking #13283 in 2005 with 7 recorded births. The name reached its all-time peak in 1998 with 27 births ranking #4155. Since 1996, the popularity has decreased by 53.3%. In 2005, approximately 1 in every 263,957 girls born was named Cassity. FALLING Recent data shows the name is currently falling.