Kathryn is a moderately popular girls' name in England & Wales, ranking #118 in 1999 with 422 recorded births. The name reached its all-time peak in 1996 with 635 births ranking #86. Since 1996, the popularity has decreased by 33.5%. In 1999, approximately 1 in every 668 girls born was named Kathryn. FALLING Recent data shows the name is currently falling.