Katy is a distinctive girls' name in United States, ranking #964 in 2000 with 220 recorded births. This places Katy in the top 5% of ranked US girls' names for the year. Its actual usage is classified as Uncommon. The name reached its all-time peak in 1997 with 279 births ranking #758. Since 1996, the popularity has decreased by 19.7%. In 2000, approximately 1 in every 8,254 girls born was named Katy. FALLING Recent data shows the name is currently falling.