Cassity is a distinctive girls' name in United States, ranking #6679 in 2001 with 16 recorded births. This places Cassity in the top 37% of ranked US girls' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 1998 with 27 births ranking #4155. In 2001, approximately 1 in every 112,535 girls born was named Cassity. FALLING Recent data shows the name is currently falling.