Keyen is a distinctive boys' name in United States, ranking #9183 in 2006 with 8 recorded births. This places Keyen in the bottom 35% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2008 with 9 births ranking #8692. In 2006, approximately 1 in every 256,890 boys born was named Keyen. FALLING Recent data shows the name is currently falling.