Caelin is a distinctive boys' name in United States, ranking #5358 in 2009 with 17 recorded births. The name reached its all-time peak in 1997 with 21 births ranking #3364. Since 1996, the popularity has decreased by 15.0%. In 2009, approximately 1 in every 116,665 boys born was named Caelin. FALLING Recent data shows the name is currently falling.