Cailean is a distinctive boys' name in United States, ranking #8273 in 1997 with 6 recorded births. The name reached its all-time peak in 1996 with 9 births ranking #6052. Since 1996, the popularity has decreased by 33.3%. In 1997, approximately 1 in every 314,182 boys born was named Cailean. STABLE Recent data shows the name is currently stable.