Kathern is a distinctive girls' name in United States, ranking #11989 in 1999 with 7 recorded births. The name reached its all-time peak in 1996 with 11 births ranking #7840. Since 1996, the popularity has decreased by 36.4%. In 1999, approximately 1 in every 253,397 girls born was named Kathern. STABLE Recent data shows the name is currently stable.