Kathryn is a moderately popular girls' name in United States, ranking #318 in 2015 with 1,021 recorded births. The name reached its all-time peak in 1996 with 4,102 births ranking #87. Since 1996, the popularity has decreased by 75.1%. In 2015, approximately 1 in every 1,748 girls born was named Kathryn. FALLING Recent data shows the name is currently falling.