Cailen is a distinctive girls' name in United States, ranking #14189 in 2007 with 7 recorded births. The name reached its all-time peak in 2009 with 13 births ranking #8991. Since 1996, the popularity has increased by 16.7%. In 2007, approximately 1 in every 274,635 girls born was named Cailen. STABLE Recent data shows the name is currently stable.