Kathryn is a moderately popular girls' name in United States, ranking #237 in 2011 with 1,337 recorded births. The name reached its all-time peak in 1996 with 4,102 births ranking #87. Since 1996, the popularity has decreased by 67.4%. In 2011, approximately 1 in every 1,315 girls born was named Kathryn. FALLING Recent data shows the name is currently falling.