Kaelin is a distinctive boys' name in United States, ranking #2041 in 1997 with 44 recorded births. The name reached its all-time peak in 1996 with 65 births ranking #1543. Since 1996, the popularity has decreased by 32.3%. In 1997, approximately 1 in every 42,843 boys born was named Kaelin. FALLING Recent data shows the name is currently falling.