Cailen is a distinctive boys' name in United States, ranking #7847 in 2022 with 10 recorded births. The name reached its all-time peak in 2007 with 17 births ranking #5238. Since 1996, the popularity has increased by 42.9%. In 2022, approximately 1 in every 174,437 boys born was named Cailen. RISING Recent data shows the name is currently rising.