Dasht Rural District () is in the Central District of Shahreza County, Isfahan province, Iran. Its capital is the village of Mahyar.
At the time of the 2006 National Census, the rural district's population was 4,853 in 1,311 households. There were 3,069 inhabitants in 941 households at the following census of 2011. The 2016 census measured the population of the rural district as 2,175 in 693 households. The most populous of its 40 villages was Mahyar, with 1,134 people.