Jaci is a distinctive girls' name in United States, ranking #1328 in 2007 with 183 recorded births. The name reached its all-time peak in 2005 with 221 births ranking #1075. Since 1996, the popularity has increased by 105.6%. In 2007, approximately 1 in every 10,505 girls born was named Jaci. STABLE Recent data shows the name is currently stable.