Qasr-e-Shirin County (Persian: شهرستان قصر شیرین) is a county in Kermanshah Province in Iran. The capital of the county is Qasr-e Shirin. At the 2006 census, the county's population was 19,821, in 4,999 families. The county is subdivided into two districts: the Central District and Sumar District. The county has two cities: Qasr-e Shirin and Sumar.
