Cathryn is a distinctive girls' name in United States, ranking #2781 in 2015 with 63 recorded births. The name reached its all-time peak in 1996 with 155 births ranking #1172. Since 1996, the popularity has decreased by 59.4%. In 2015, approximately 1 in every 28,328 girls born was named Cathryn. FALLING Recent data shows the name is currently falling.