Arun is a moderately popular boys' name in England & Wales, ranking #370 in 2001 with 65 recorded births. This places Arun in the top 9% of ranked UK boys' names for the year. Its actual usage is classified as Moderately Popular. The name reached its all-time peak in 2007 with 105 births ranking #349. In 2001, approximately 1 in every 4,428 boys born was named Arun. FALLING Recent data shows the name is currently falling.