Harmon is a distinctive boys' name in United States, ranking #2957 in 1998 with 27 recorded births. The name reached its all-time peak in 2006 with 37 births ranking #2996. Since 1996, the popularity has increased by 145.5%. In 1998, approximately 1 in every 70,790 boys born was named Harmon. FALLING Recent data shows the name is currently falling.