Shirin Su Rural District (Persian: دهستان شيرين سو) is in Shirin Su District of Kabudarahang County, Hamadan province, Iran.

[4] At the time of the 2006 National Census, the rural district's population was 10,322 in 2,129 households.

[6] The 2016 census measured the population of the rural district as 9,299 in 2,718 households.

The most populous of its 16 villages was Baba Khanjar, with 1,494 people.

This Kabudarahang County location article is a stub.