Walong is an administrative town and the headquarters of eponymous circle in the Anjaw district in eastern-most part of Arunachal Pradesh state in India. It also has a small cantonment of the Indian Army. Walong is on banks of Lohit River, which enters India 35 km north of Walong at India-China LAC at Kaho pass.

Anjaw District (Pron:/ˈændʒɔ:/) is an administrative district in the state of Arunachal Pradesh in north-east India. It was created district in 2004, by splitting off from the Lohit district under the Arunachal Pradesh Re-organization of Districts Amendment Act. The district borders China on the north. Hawai, at an altitude of 1296 m above sea level, is the district headquarters, located on the banks of the Lohit River, a tributary of the Brahmaputra River. It is the easternmost district in India. The furthest villages towards the border with China are Dong, Walong, Kibithu and Kaho.