Kathy is a distinctive girls' name in United States, ranking #591 in 1997 with 389 recorded births. The name reached its all-time peak in 1996 with 445 births ranking #530. Since 1996, the popularity has decreased by 12.6%. In 1997, approximately 1 in every 4,475 girls born was named Kathy. FALLING Recent data shows the name is currently falling.