Katy is a distinctive girls' name in United States, ranking #1296 in 2014 with 184 recorded births. The name reached its all-time peak in 1997 with 279 births ranking #758. Since 1996, the popularity has decreased by 32.8%. In 2014, approximately 1 in every 9,706 girls born was named Katy. FALLING Recent data shows the name is currently falling.