Json is a distinctive boys' name in United States, ranking #9414 in 2008 with 8 recorded births. The name reached its all-time peak in 1996 with 49 births ranking #1857. Since 1996, the popularity has decreased by 83.7%. In 2008, approximately 1 in every 254,993 boys born was named Json. FALLING Recent data shows the name is currently falling.