Kathy is a distinctive girls' name in United States, ranking #1352 in 2011 with 171 recorded births. The name reached its all-time peak in 1996 with 445 births ranking #530. Since 1996, the popularity has decreased by 61.6%. In 2011, approximately 1 in every 10,285 girls born was named Kathy. FALLING Recent data shows the name is currently falling.