Jaci is a distinctive girls' name in United States, ranking #1301 in 2001 with 148 recorded births. The name reached its all-time peak in 2005 with 221 births ranking #1075. Since 1996, the popularity has increased by 66.3%. In 2001, approximately 1 in every 12,166 girls born was named Jaci. STABLE Recent data shows the name is currently stable.