Seyedal Rural District () is in Sardaran District of Nehbandan County, South Khorasan province, Iran. Its capital is the village of Seyedal, whose population at the time of the 2016 National Census was 582 in 169 households.
In 2020, Arabkhaneh Rural District was separated from Shusef District in the formation of Sardaran District, and Seyedal Rural District was created in the new district.