Arun is a distinctive boys' name in England & Wales, ranking #692 in 2013 with 47 recorded births. The name reached its all-time peak in 2007 with 105 births ranking #349. Since 1996, the popularity has decreased by 34.7%. In 2013, approximately 1 in every 7,097 boys born was named Arun. FALLING Recent data shows the name is currently falling.