Some of the Indonesian regencies such as Indragiri Hulu and Indragiri Hilir derived from Indragiri River, Indragiri itself means "mountain of Indra".
Beberapa kabupaten Indonesia seperti Indragiri Hulu dan Indragiri Hilir berasal dari Sungai Indragiri River, Indragiri sendiri berarti gunung Indra.