Kaci is a distinctive girls' name in United States, ranking #1307 in 2010 with 180 recorded births. The name reached its all-time peak in 1998 with 281 births ranking #766. Since 1996, the popularity has decreased by 31.6%. In 2010, approximately 1 in every 9,874 girls born was named Kaci. FALLING Recent data shows the name is currently falling.