Kagen is a distinctive boys' name in United States, ranking #4301 in 2010 with 23 recorded births. The name reached its all-time peak in 2007 with 41 births ranking #2895. Since 1996, the popularity has increased by 21.1%. In 2010, approximately 1 in every 83,409 boys born was named Kagen. FALLING Recent data shows the name is currently falling.