Kellyn is a distinctive girls' name in United States, ranking #8277 in 2022 with 13 recorded births. The name reached its all-time peak in 2008 with 67 births ranking #2731. Since 1996, the popularity has decreased by 76.8%. In 2022, approximately 1 in every 126,059 girls born was named Kellyn. FALLING Recent data shows the name is currently falling.