Kathryn is a moderately popular girls' name in United States, ranking #143 in 2006 with 2,419 recorded births. The name reached its all-time peak in 1996 with 4,102 births ranking #87. Since 1996, the popularity has decreased by 41.0%. In 2006, approximately 1 in every 786 girls born was named Kathryn. FALLING Recent data shows the name is currently falling.