Caelin is a distinctive boys' name in United States, ranking #7636 in 2012 with 10 recorded births. The name reached its all-time peak in 1997 with 21 births ranking #3364. Since 1996, the popularity has decreased by 50.0%. In 2012, approximately 1 in every 189,663 boys born was named Caelin. FALLING Recent data shows the name is currently falling.