Kathryn is a moderately popular girls' name in United States, ranking #230 in 2010 with 1,370 recorded births. The name reached its all-time peak in 1996 with 4,102 births ranking #87. Since 1996, the popularity has decreased by 66.6%. In 2010, approximately 1 in every 1,297 girls born was named Kathryn. FALLING Recent data shows the name is currently falling.