Johnthan is a distinctive boys' name in United States, ranking #5148 in 2003 with 15 recorded births. The name reached its all-time peak in 1996 with 20 births ranking #3471. Since 1996, the popularity has decreased by 25.0%. In 2003, approximately 1 in every 131,685 boys born was named Johnthan. FALLING Recent data shows the name is currently falling.