Jonathon is a moderately popular boys' name in United States, ranking #331 in 2005 with 922 recorded births. The name reached its all-time peak in 1996 with 1,972 births ranking #171. Since 1996, the popularity has decreased by 53.2%. In 2005, approximately 1 in every 2,166 boys born was named Jonathon. FALLING Recent data shows the name is currently falling.