Cathryn is a distinctive girls' name in United States, ranking #1360 in 1999 with 130 recorded births. The name reached its all-time peak in 1996 with 155 births ranking #1172. Since 1996, the popularity has decreased by 16.1%. In 1999, approximately 1 in every 13,644 girls born was named Cathryn. FALLING Recent data shows the name is currently falling.