Kathyrn is a distinctive girls' name in United States, ranking #14579 in 2008 with 7 recorded births. The name reached its all-time peak in 1997 with 18 births ranking #5509. Since 1996, the popularity has decreased by 53.3%. In 2008, approximately 1 in every 270,103 girls born was named Kathyrn. STABLE Recent data shows the name is currently stable.