Kellyn is a distinctive girls' name in United States, ranking #3194 in 1997 with 37 recorded births. The name reached its all-time peak in 2008 with 67 births ranking #2731. Since 1996, the popularity has decreased by 33.9%. In 1997, approximately 1 in every 47,045 girls born was named Kellyn. FALLING Recent data shows the name is currently falling.