Cathy is a distinctive girls' name in United States, ranking #2398 in 2007 with 79 recorded births. The name reached its all-time peak in 1997 with 133 births ranking #1305. Since 1996, the popularity has decreased by 38.8%. In 2007, approximately 1 in every 24,335 girls born was named Cathy. FALLING Recent data shows the name is currently falling.