Katy is a distinctive girls' name in United States, ranking #1804 in 2018 with 113 recorded births. The name reached its all-time peak in 1997 with 279 births ranking #758. Since 1996, the popularity has decreased by 58.8%. In 2018, approximately 1 in every 15,048 girls born was named Katy. FALLING Recent data shows the name is currently falling.