Sabzevar (Persian: سبزوار ), previously known as Beyhagh (also spelled "Beihagh"; Persian: بيهق), is a city and capital of Sabzevar County, in Razavi Khorasan Province, approximately 220 kilometers (140 mi) west of the provincial capital Mashhad, in northeastern Iran. At the 2006 census, its population was 208,172, in 57,024 families. It suffered a flash flood in April 2020.