Sincik District is a district of Adñyaman Province of Turkey. Its seat is the town Sincik. Its area is 495 km<sup>2</sup>, and its population is 16,341 (2021).
The district was established in 1990.
There are two municipalities in Sincik District:
There are 24 villages in Sincik District:
The town and its villages are populated by Kurds from the Reà Âwan tribe.