Kathryn is a popular girls' name in United States, ranking #87 in 1996 with 4,102 recorded births. This places Kathryn in the top 1% of ranked US girls' names for the year. Its actual usage is classified as Popular. The name reached its all-time peak in 1996 with 4,102 births ranking #87. In 1996, approximately 1 in every 427 girls born was named Kathryn. FALLING Recent data shows the name is currently falling.