Kathy is a distinctive girls' name in United States, ranking #803 in 2003 with 308 recorded births. The name reached its all-time peak in 1996 with 445 births ranking #530. Since 1996, the popularity has decreased by 30.8%. In 2003, approximately 1 in every 5,932 girls born was named Kathy. FALLING Recent data shows the name is currently falling.