Johnthan is a distinctive boys' name in United States, ranking #13398 in 2009 with 5 recorded births. The name reached its all-time peak in 1996 with 20 births ranking #3471. Since 1996, the popularity has decreased by 75.0%. In 2009, approximately 1 in every 396,661 boys born was named Johnthan. FALLING Recent data shows the name is currently falling.