Johnthan is a distinctive boys' name in United States, ranking #6048 in 1998 with 10 recorded births. The name reached its all-time peak in 1996 with 20 births ranking #3471. Since 1996, the popularity has decreased by 50.0%. In 1998, approximately 1 in every 191,132 boys born was named Johnthan. FALLING Recent data shows the name is currently falling.