Qasr-e Shirin (Kurdish: Qesri Shírín, قهسرشیرین, Persian: قصرشيرين; also Romanized as Qaşr-e Shīrīn, Ghasr-ī-shīrīn, Ghasr-shīrīn, and Qasr-ī-Shīrīn) is a city in and the capital of Qasr-e Shirin County, Kermanshah Province, Iran. At the 2006 census, its population was 15,437, in 3,893 families.