Cleon is a distinctive boys' name in United States, ranking #5720 in 1999 with 11 recorded births. The name reached its all-time peak in 2002 with 14 births ranking #5179. Since 1996, the popularity has increased by 57.1%. In 1999, approximately 1 in every 174,553 boys born was named Cleon. FALLING Recent data shows the name is currently falling.