Cathryn is a distinctive girls' name in United States, ranking #2271 in 2006 with 84 recorded births. The name reached its all-time peak in 1996 with 155 births ranking #1172. Since 1996, the popularity has decreased by 45.8%. In 2006, approximately 1 in every 22,632 girls born was named Cathryn. FALLING Recent data shows the name is currently falling.