Kaetlyn is a distinctive girls' name in United States, ranking #16685 in 2019 with 5 recorded births. The name reached its all-time peak in 1997 with 57 births ranking #2343. Since 1996, the popularity has decreased by 83.9%. In 2019, approximately 1 in every 335,514 girls born was named Kaetlyn. FALLING Recent data shows the name is currently falling.