Casi is a distinctive girls' name in United States, ranking #14949 in 2014 with 6 recorded births. This places Casi in the bottom 22% of ranked US girls' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 1997 with 27 births ranking #4024. Since 1996, the popularity has decreased by 75.0%. In 2014, approximately 1 in every 297,656 girls born was named Casi. STABLE Recent data shows the name is currently stable.