Arun \a-run\ as a boy's name is of Hindi and Cambodian origin, and the meaning of Arun is "dawn; sun". In Hindi, the name represents dawn colors as well as the rich hues of gold and rubies.

For more information, see also the related name Aaron.

Baby names that sound like Arun are Aron, Arin, Aren, Aran and Arn. Other similar baby names are Alun and Arjun.