Khosrow Shirin (Persian: خسروشيرين‎, also Romanized as Khosrow Shīrīn; also known as Kūh-i-Khusru and Shirin) is a village in Khosrow Shirin Rural District, formerly in the Central District of Abadeh County, Fars Province, Iran. At the 2006 census, its population was 1,835, in 503 families. Ensuing years of protest by the people living in Khosrow Shirin, the village went through a process of secession from Abadeh county. The popular secessionist efforts on the part of people culminated in the presidential order by Mahmoud Ahmadinejad in 2005-2006 which warranted the separation from Eqlid County and accession to Abadeh County. Since then, the village and its surrounding region are officially considered a territorial section of Abadeh County.