Kaetlyn is a distinctive girls' name in United States, ranking #5273 in 2001 with 22 recorded births. The name reached its all-time peak in 1997 with 57 births ranking #2343. Since 1996, the popularity has decreased by 29.0%. In 2001, approximately 1 in every 81,844 girls born was named Kaetlyn. FALLING Recent data shows the name is currently falling.