Kaetlyn is a distinctive girls' name in United States, ranking #11423 in 2014 with 9 recorded births. The name reached its all-time peak in 1997 with 57 births ranking #2343. Since 1996, the popularity has decreased by 71.0%. In 2014, approximately 1 in every 198,437 girls born was named Kaetlyn. FALLING Recent data shows the name is currently falling.