Kuhenjan (Persian: كوهنجان) is a city in, and the capital of, Kuhenjan District of Sarvestan County, Fars province, Iran. It also serves as the administrative center for Kuhenjan Rural District.

At the 2006 census, its population was 2,930 in 750 households, when it was a village in Kuhenjan Rural District of the former Sarvestan District of Shiraz County. The following census in 2011 counted 3,739 people in 1,036 households, by which time the district had been separated from the county in the establishment of Sarvestan County, and the village of Kuhenjan elevated to the status of a city. The latest census in 2016 showed a population of 3,281 people in 1,041 households.