Firuzabad (Persian: فيروزاباد) is a village in Sanjabad-e Jonubi Rural District of Firuz District, Kowsar County, Ardabil province, Iran, serving as capital of both the district and the rural district.

At the 2006 census, its population was 319 in 83 households. The following census in 2011 counted 400 people in 110 households. The latest census in 2016 showed a population of 489 people in 132 households. It was the most populous village in its rural district.