Kylyn is a distinctive girls' name in United States, ranking #9542 in 2010 with 12 recorded births. The name reached its all-time peak in 2016 with 20 births ranking #6301. Since 1996, the popularity has increased by 20.0%. In 2010, approximately 1 in every 148,111 girls born was named Kylyn. FALLING Recent data shows the name is currently falling.