Daysun is a distinctive boys' name in United States, ranking #12723 in 2011 with 5 recorded births. This places Daysun in the bottom 11% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2006 with 5 births ranking #12461. In 2011, approximately 1 in every 379,798 boys born was named Daysun. STABLE Recent data shows the name is currently stable.