Beyhaq Rural District

Beyhaq Rural District is in the Central District of Sheshtamad County, Razavi Khorasan province, Iran. It is administered from the city of Sheshtomad.

At the National Census of 2016, its population (as a part of the former Sheshtamad District of Sabzevar County) was 7,417 in 2,237 households. There were 7,826 inhabitants in 2,595 households at the following census of 2011. At the most recent census of 2016, the population of the rural district was 6,871 in 2,330 households. The most populous of its 143 villages was Keyzur, with 1,222 people.

In February 2019, the district was separated from the county to establish Sheshtamad County and divided into two districts, each with two rural districts. The city of Sheshtomad became the new county's capital. The village of Shamkan was later elevated to the status of a city and became the capital of Shamkan District.