Kacy is a distinctive girls' name in United States, ranking #3183 in 2008 with 53 recorded births. The name reached its all-time peak in 1996 with 141 births ranking #1240. Since 1996, the popularity has decreased by 62.4%. In 2008, approximately 1 in every 35,674 girls born was named Kacy. STABLE Recent data shows the name is currently stable.