Json is a distinctive boys' name in United States, ranking #6806 in 1999 with 9 recorded births. The name reached its all-time peak in 1996 with 49 births ranking #1857. Since 1996, the popularity has decreased by 81.6%. In 1999, approximately 1 in every 213,343 boys born was named Json. FALLING Recent data shows the name is currently falling.