Kathy is a distinctive girls' name in United States, ranking #716 in 2001 with 343 recorded births. The name reached its all-time peak in 1996 with 445 births ranking #530. Since 1996, the popularity has decreased by 22.9%. In 2001, approximately 1 in every 5,249 girls born was named Kathy. FALLING Recent data shows the name is currently falling.