Jaci is a distinctive girls' name in United States, ranking #1422 in 1998 with 121 recorded births. The name reached its all-time peak in 2005 with 221 births ranking #1075. Since 1996, the popularity has increased by 36.0%. In 1998, approximately 1 in every 14,602 girls born was named Jaci. STABLE Recent data shows the name is currently stable.