Ruin Rural District (Persian: دهستان روئين) is in the Central District of Esfarayen County, North Khorasan province, Iran.

[4] At the time of the 2006 National Census, the rural district's population was 15,810 in 3,849 households.

[6] The 2016 census measured the population of the rural district as 14,135 in 4,338 households.

The most populous of its 76 villages was Sast, with 718 people.

This Esfarayen County location article is a stub.