Katy is a distinctive girls' name in United States, ranking #994 in 2003 with 233 recorded births. The name reached its all-time peak in 1997 with 279 births ranking #758. Since 1996, the popularity has decreased by 15.0%. In 2003, approximately 1 in every 7,841 girls born was named Katy. FALLING Recent data shows the name is currently falling.