Kaci is a distinctive girls' name in United States, ranking #1338 in 2007 with 182 recorded births. The name reached its all-time peak in 1998 with 281 births ranking #766. Since 1996, the popularity has decreased by 30.8%. In 2007, approximately 1 in every 10,563 girls born was named Kaci. FALLING Recent data shows the name is currently falling.