Johnnathan is a distinctive boys' name in United States, ranking #5515 in 2001 with 13 recorded births. The name reached its all-time peak in 2001 with 13 births ranking #5515. Since 1996, the popularity has increased by 85.7%. In 2001, approximately 1 in every 149,449 boys born was named Johnnathan. FALLING Recent data shows the name is currently falling.