Katy is a distinctive girls' name in United States, ranking #1795 in 2017 with 116 recorded births. The name reached its all-time peak in 1997 with 279 births ranking #758. Since 1996, the popularity has decreased by 57.7%. In 2017, approximately 1 in every 14,878 girls born was named Katy. FALLING Recent data shows the name is currently falling.