Arun is a distinctive boys' name in United States, ranking #4546 in 2012 with 21 recorded births. The name reached its all-time peak in 1998 with 44 births ranking #2097. Since 1996, the popularity has decreased by 12.5%. In 2012, approximately 1 in every 90,315 boys born was named Arun. STABLE Recent data shows the name is currently stable.