Kuh Sefid Rural District () is in the Central District of Kuhsorkh County, Razavi Khorasan province, Iran. Its capital is the village of Tavalli, whose population at the time of the 2016 National Census was 965 in 334 households.
In 2019, Kuhsorkh District was separated from Kashmar County in the establishment of Kuhsorkh County, and Kuh Sefid Rural District was created in the new Central District.