Mehr Rural District () is in Bashtin District of Davarzan County, Razavi Khorasan province, Iran. Its capital is the village of Mehr.
In 2012, Davarzan District was separated from Sabzevar County in the establishment of Davarzan County, and Mehr Rural District was created in the new Bashtin District.
At the time of the 2016 National Census, the rural district's population was 5,673 in 1,868 households. The most populous of its 23 villages was Mehr, with 1,812 people.