Kaylin is a moderately popular girls' name in United States, ranking #478 in 2002 with 587 recorded births. The name reached its all-time peak in 2008 with 869 births ranking #377. Since 1996, the popularity has increased by 18.3%. In 2002, approximately 1 in every 3,061 girls born was named Kaylin. FALLING Recent data shows the name is currently falling.