Cathryn is a distinctive girls' name in United States, ranking #1743 in 2005 with 113 recorded births. The name reached its all-time peak in 1996 with 155 births ranking #1172. Since 1996, the popularity has decreased by 27.1%. In 2005, approximately 1 in every 16,351 girls born was named Cathryn. FALLING Recent data shows the name is currently falling.