Jaysun is a distinctive boys' name in United States, ranking #7173 in 2001 with 9 recorded births. The name reached its all-time peak in 2002 with 12 births ranking #5875. Since 1996, the popularity has increased by 28.6%. In 2001, approximately 1 in every 215,870 boys born was named Jaysun. FALLING Recent data shows the name is currently falling.