Cassondra is a distinctive girls' name in United States, ranking #9917 in 2010 with 11 recorded births. The name reached its all-time peak in 1996 with 118 births ranking #1401. Since 1996, the popularity has decreased by 90.7%. In 2010, approximately 1 in every 161,575 girls born was named Cassondra. FALLING Recent data shows the name is currently falling.