Shirin Su (Persian: شيرين سو)[a] is a city in, and the capital of, Shirin Su District of Kabudarahang County, Hamadan province, Iran.

[4] It also serves as the administrative center for Shirin Su Rural District.

[5] At the time of the 2006 National Census, the city's population was2,280 in 507 households.

[7] The 2016 census measured the population of the city as 2,460 people in 651 households.

This Kabudarahang County location article is a stub.