Katy is a distinctive girls' name in United States, ranking #1260 in 2009 with 194 recorded births. The name reached its all-time peak in 1997 with 279 births ranking #758. Since 1996, the popularity has decreased by 29.2%. In 2009, approximately 1 in every 9,468 girls born was named Katy. FALLING Recent data shows the name is currently falling.