Kathy is a distinctive girls' name in United States, ranking #907 in 2006 with 293 recorded births. The name reached its all-time peak in 1996 with 445 births ranking #530. Since 1996, the popularity has decreased by 34.2%. In 2006, approximately 1 in every 6,488 girls born was named Kathy. FALLING Recent data shows the name is currently falling.