Diyadin (; ) is a town in AÃÂrñ Province of Turkey, at the foot of Mount Tendürek, a high peak in the AladaÃÂlar range that stands between AÃÂrñ and the north shore of Lake Van. It is the seat of Diyadin District. Its population is 20,302 (2021).
The mayor is Betül Yaà Âar (HDP).
As of 1920, the area was known for its sulphur production.