Cathryn is a distinctive girls' name in United States, ranking #1823 in 2003 with 102 recorded births. The name reached its all-time peak in 1996 with 155 births ranking #1172. Since 1996, the popularity has decreased by 34.2%. In 2003, approximately 1 in every 17,912 girls born was named Cathryn. FALLING Recent data shows the name is currently falling.