Dadenjan (Persian: دادنجان) is a village in, and the capital of, Dadenjan Rural District of Meymand District, Firuzabad County, Fars province, Iran.

At the 2006 National Census, its population was 386 in 86 households. The following census in 2011 counted 345 people in 87 households. The latest census in 2016 showed a population of 277 people in 102 households. It was the most populous village in its rural district.