Jaci is a distinctive girls' name in United States, ranking #1669 in 2008 with 134 recorded births. The name reached its all-time peak in 2005 with 221 births ranking #1075. Since 1996, the popularity has increased by 50.6%. In 2008, approximately 1 in every 14,110 girls born was named Jaci. STABLE Recent data shows the name is currently stable.