Arun is a distinctive boys' name in England & Wales, ranking #1061 in 2018 with 26 recorded births. The name reached its all-time peak in 2007 with 105 births ranking #349. Since 1996, the popularity has decreased by 63.9%. In 2018, approximately 1 in every 12,023 boys born was named Arun. FALLING Recent data shows the name is currently falling.