Ganjgah (Persian: گنجگاه) is a village in, and the capital of, Sanjabad-e Gharbi Rural District of the Central District of Kowsar County, Ardabil province, Iran.

At the 2006 census, its population was 750 in 175 households. The following census in 2011 counted 948 people in 237 households. The latest census in 2016 showed a population of 685 people in 194 households. It was the most populous village in its rural district.