Kathy is a distinctive girls' name in United States, ranking #884 in 2005 with 286 recorded births. The name reached its all-time peak in 1996 with 445 births ranking #530. Since 1996, the popularity has decreased by 35.7%. In 2005, approximately 1 in every 6,460 girls born was named Kathy. FALLING Recent data shows the name is currently falling.