Surin () is a village in Buin Rural District of Nanur District, Baneh County, Kurdistan province, Iran.
The village is populated by Kurds.
At the time of the 2006 National Census, the village's population was 366 in 68 households. The following census in 2011 counted 422 people in 93 households. The 2016 census measured the population of the village as 458 people in 117 households. It was the most populous village in its rural district.