District Siang is a district located in the state of Arunachal Pradesh, India. It is situated in the northeastern part of the country and is known for its natural beauty and cultural heritage.

Siang District is named after the Siang River, which flows through the district. The district headquarters is located in the town of Pangin. The region is inhabited by various indigenous tribes, including the Adi, Galo, Minyong, and Pasi communities.