Cathy is a distinctive girls' name in United States, ranking #2190 in 2006 with 88 recorded births. The name reached its all-time peak in 1997 with 133 births ranking #1305. Since 1996, the popularity has decreased by 31.8%. In 2006, approximately 1 in every 21,603 girls born was named Cathy. FALLING Recent data shows the name is currently falling.