Json is a distinctive boys' name in United States, ranking #5899 in 2002 with 12 recorded births. The name reached its all-time peak in 1996 with 49 births ranking #1857. Since 1996, the popularity has decreased by 75.5%. In 2002, approximately 1 in every 161,789 boys born was named Json. FALLING Recent data shows the name is currently falling.