Jacy is a distinctive girls' name in United States, ranking #3944 in 2015 with 38 recorded births. This places Jacy in the top 21% of ranked US girls' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2000 with 140 births ranking #1348. Since 1996, the popularity has decreased by 66.7%. In 2015, approximately 1 in every 46,965 girls born was named Jacy. FALLING Recent data shows the name is currently falling.