Gedaylu (Persian: گدايلو) is a village in, and the capital of, Aslan Duz-e Gharbi Rural District of the Central District of Aslan Duz County, Ardabil province, Iran.

At the 2006 National Census, its population was 587 in 95 households, when it was in Aslan Duz Rural District of Aslan Duz District, Parsabad County. The following census in 2011 counted 552 people in 136 households. The latest census in 2016 showed a population of 661 people in 172 households.

In 2017, the district was separated from the county in the establishment of Aslan Duz County, which was divided into two districts of two rural districts each, with Aslan Duz as its capital and only city.