Kagen is a distinctive boys' name in United States, ranking #6489 in 2003 with 11 recorded births. The name reached its all-time peak in 2007 with 41 births ranking #2895. Since 1996, the popularity has decreased by 42.1%. In 2003, approximately 1 in every 179,570 boys born was named Kagen. FALLING Recent data shows the name is currently falling.