Jaci is a distinctive girls' name in United States, ranking #1266 in 2002 with 156 recorded births. The name reached its all-time peak in 2005 with 221 births ranking #1075. Since 1996, the popularity has increased by 75.3%. In 2002, approximately 1 in every 11,518 girls born was named Jaci. STABLE Recent data shows the name is currently stable.