Arun is a distinctive boys' name in United States, ranking #4527 in 2010 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 2010, approximately 1 in every 91,353 boys born was named Arun. STABLE Recent data shows the name is currently stable.