Kathryn is a moderately popular girls' name in United States, ranking #122 in 2004 with 2,757 recorded births. The name reached its all-time peak in 1996 with 4,102 births ranking #87. Since 1996, the popularity has decreased by 32.8%. In 2004, approximately 1 in every 666 girls born was named Kathryn. FALLING Recent data shows the name is currently falling.