Kathy is a distinctive girls' name in United States, ranking #1260 in 2010 with 190 recorded births. The name reached its all-time peak in 1996 with 445 births ranking #530. Since 1996, the popularity has decreased by 57.3%. In 2010, approximately 1 in every 9,354 girls born was named Kathy. FALLING Recent data shows the name is currently falling.