Katy is a moderately popular girls' name in England & Wales, ranking #434 in 2013 with 97 recorded births. The name reached its all-time peak in 1996 with 413 births ranking #111. Since 1996, the popularity has decreased by 76.5%. In 2013, approximately 1 in every 3,180 girls born was named Katy. FALLING Recent data shows the name is currently falling.