Kathryn is a popular girls' name in United States, ranking #91 in 1999 with 3,589 recorded births. The name reached its all-time peak in 1996 with 4,102 births ranking #87. Since 1996, the popularity has decreased by 12.5%. In 1999, approximately 1 in every 494 girls born was named Kathryn. FALLING Recent data shows the name is currently falling.