Shanin () is a village in Dodangeh-ye Olya Rural District of Ziaabad District in Takestan County, Qazvin province, Iran.
At the time of the 2006 National Census, the village's population was 301 in 88 households. The following census in 2011 counted 242 people in 78 households. The 2016 census measured the population of the village as 306 people in 101 households.