Json is a distinctive boys' name in United States, ranking #10405 in 2009 with 7 recorded births. The name reached its all-time peak in 1996 with 49 births ranking #1857. Since 1996, the popularity has decreased by 85.7%. In 2009, approximately 1 in every 283,329 boys born was named Json. FALLING Recent data shows the name is currently falling.