Arun is a distinctive boys' name in England & Wales, ranking #505 in 2009 with 69 recorded births. This places Arun in the top 9% of ranked UK boys' names for the year. Its actual usage is classified as Uncommon. The name reached its all-time peak in 2007 with 105 births ranking #349. In 2009, approximately 1 in every 4,901 boys born was named Arun. FALLING Recent data shows the name is currently falling.