Casi is a distinctive girls' name in United States, ranking #5617 in 1998 with 18 recorded births. The name reached its all-time peak in 1997 with 27 births ranking #4024. Since 1996, the popularity has decreased by 25.0%. In 1998, approximately 1 in every 98,161 girls born was named Casi. STABLE Recent data shows the name is currently stable.