Arun is a distinctive boys' name in England & Wales, ranking #580 in 2011 with 60 recorded births. The name reached its all-time peak in 2007 with 105 births ranking #349. Since 1996, the popularity has decreased by 16.7%. In 2011, approximately 1 in every 5,764 boys born was named Arun. FALLING Recent data shows the name is currently falling.