Cleon is a distinctive boys' name in United States, ranking #10917 in 2006 with 6 recorded births. The name reached its all-time peak in 2002 with 14 births ranking #5179. Since 1996, the popularity has decreased by 14.3%. In 2006, approximately 1 in every 342,520 boys born was named Cleon. FALLING Recent data shows the name is currently falling.