Pain Velayat Rural District (Persian: دهستان پائين ولايت) is in the Central District of Kashmar County, Razavi Khorasan province, Iran. Its capital is the village of Kasrineh.

At the National Census of 2006, its population was 11,399 in 3,144 households. There were 12,503 inhabitants in 3,816 households at the following census of 2011. At the most recent census of 2016, the population of the rural district was 12,758 in 4,067 households. The most populous of its 60 villages was Moghan, with 2,516 people.