Jacy is a distinctive girls' name in United States, ranking #1400 in 2002 with 138 recorded births. The name reached its all-time peak in 2000 with 140 births ranking #1348. Since 1996, the popularity has increased by 21.1%. In 2002, approximately 1 in every 13,020 girls born was named Jacy. FALLING Recent data shows the name is currently falling.