Kaci is a distinctive girls' name in United States, ranking #1484 in 2011 with 151 recorded births. The name reached its all-time peak in 1998 with 281 births ranking #766. Since 1996, the popularity has decreased by 42.6%. In 2011, approximately 1 in every 11,648 girls born was named Kaci. FALLING Recent data shows the name is currently falling.