Zardban Rural District () is in Pishin District of Rask County, Sistan and Baluchestan province, Iran. Its capital is the village of Zardban. Prior to the 2011 census, its constituent villages were in Pishin Rural District of Sarbaz County.
There were 3,970 inhabitants in 875 households at the National Census of 2011 (as a part of Sarbaz County). At the most recent census of 2016, the population of the rural district was 4,119 in 1,059 households. The largest of its 15 villages was Zardban, with 1,311 people.
After the census, three districts were separated from Sarbaz County to establish Rask County, with the city of Rask as its capital.