Qir (Persian: قير) is a city in the Central District of Qir and Karzin County, Fars province, Iran, serving as capital of both the county and the district. The city has an altitude of 771 metres (2,530 ft).

At the 2006 National Census, its population was 16,839 in 3,722 households. The following census in 2011 counted 18,038 people in 4,603 households. The latest census in 2016 showed a population of 20,010 people in 5,650 households.

On 10 April 1972, Qir was destroyed by a large earthquake, killing 3,399 people, two-thirds of the population at that time.