Json is a distinctive boys' name in United States, ranking #7255 in 2004 with 10 recorded births. The name reached its all-time peak in 1996 with 49 births ranking #1857. Since 1996, the popularity has decreased by 79.6%. In 2004, approximately 1 in every 198,480 boys born was named Json. FALLING Recent data shows the name is currently falling.