Najafabad () is a village in, and the capital of, Najafabad Rural District of the Central District of Bijar County, Kurdistan province, Iran.
The village is populated by Kurds.
At the time of the 2006 National Census, the village's population was 477 in 110 households. The following census in 2011 counted 557 people in 145 households. The 2016 census measured the population of the village as 419 people in 119 households. It was the most populous village in its rural district.