Harmon is a distinctive boys' name in United States, ranking #3757 in 2005 with 25 recorded births. The name reached its all-time peak in 2006 with 37 births ranking #2996. Since 1996, the popularity has increased by 127.3%. In 2005, approximately 1 in every 79,886 boys born was named Harmon. FALLING Recent data shows the name is currently falling.