Kordeh Deh (Persian: كرده ده)[3] is a village in Ab-e Garm Rural District of the Central District of Sareyn County, Ardabil province, Iran.

At the time of the 2006 National Census, the village's population was 833 in 175 households, when it was in the former Sareyn District of Ardabil County.

[4] The following census in 2011 counted 973 people in 279 households,[5] by which time the district had been separated from the county in the establishment of Sareyn County.

[6] The 2016 census measured the population of the village as 1,077 people in 321 households.

This Sareyn County location article is a stub.