Johnathon is a moderately popular boys' name in United States, ranking #360 in 1999 with 729 recorded births. The name reached its all-time peak in 1996 with 871 births ranking #302. Since 1996, the popularity has decreased by 16.3%. In 1999, approximately 1 in every 2,634 boys born was named Johnathon. STABLE Recent data shows the name is currently stable.