Kathy is a distinctive girls' name in United States, ranking #921 in 2007 with 294 recorded births. The name reached its all-time peak in 1996 with 445 births ranking #530. Since 1996, the popularity has decreased by 33.9%. In 2007, approximately 1 in every 6,539 girls born was named Kathy. FALLING Recent data shows the name is currently falling.