Kaci is a distinctive girls' name in United States, ranking #1518 in 2013 with 145 recorded births. The name reached its all-time peak in 1998 with 281 births ranking #766. Since 1996, the popularity has decreased by 44.9%. In 2013, approximately 1 in every 12,099 girls born was named Kaci. FALLING Recent data shows the name is currently falling.