Sabzevar County is in Razavi Khorasan province, Iran. Its capital is the city of Sabzevar.

Razavi Khorasan or Central Khorasan Province is one of the 31 provinces of Iran, located in northeastern Iran. The city of Mashhad is the center and capital of the province. Central Khorasan is one of the three provinces that were created after the division of Khorasan province in 2004. In 2014, it was placed in Region 5 with Mashhad as the location of the region's secretariat.