Kathlynn is a distinctive girls' name in United States, ranking #12794 in 2012 with 8 recorded births. The name reached its all-time peak in 2003 with 15 births ranking #7392. Since 1996, the popularity has increased by 14.3%. In 2012, approximately 1 in every 220,093 girls born was named Kathlynn. FALLING Recent data shows the name is currently falling.