Jacy is a distinctive girls' name in United States, ranking #2036 in 2005 with 92 recorded births. The name reached its all-time peak in 2000 with 140 births ranking #1348. Since 1996, the popularity has decreased by 19.3%. In 2005, approximately 1 in every 20,084 girls born was named Jacy. FALLING Recent data shows the name is currently falling.