Khosrow Shirin (, also Romanized as Khosrow Shīrīn; also known as Kūh-i-Khusru and Shirin) is a village in Khosrow Shirin Rural District of Bahman and Soghad District, Abadeh County, Fars province, Iran.
At the 2006 National Census, its population was 1,835 in 503 households, when it was in the Central District of Eqlid County. The following census in 2011 counted 2,069 people in 595 households, by which time the rural district had been transferred to the Central District of Abadeh County. The latest census in 2016 showed a population of 1,969 people in 607 households. It was the largest village in its rural district.
In July 2018, Bahman Rural District, Khosrow Shirin Rural District, Bahman, and Soghad were separated from the Central District in the establishment of the new Bahman and Soghad District.