Khorramabad County (Persian: شهرستان خرمآباد) is a county in Lorestan Province in Iran. The capital of the county is Khorramabad. At the 2006 census, the county's population (including those portions later split off to form Dowreh County) was 509,251, in 113,886 families; excluding those portions, the population was 465,105, in 104,164 families. The county is subdivided into four districts: the Central District, Papi District, Chaghalvandi District, Zagheh District. The county has four cities: Sepiddasht, Chaghalvandi, Zagheh, and Khorramabad.
