Kagen is a distinctive boys' name in United States, ranking #6487 in 2012 with 13 recorded births. The name reached its all-time peak in 2007 with 41 births ranking #2895. Since 1996, the popularity has decreased by 31.6%. In 2012, approximately 1 in every 145,894 boys born was named Kagen. FALLING Recent data shows the name is currently falling.