Mohammad Khan (, also Romanized as Mohammed KhÃÂn; also known as KalÃÂteh-ye Moḩammad KhÃÂn, KalÃÂt-e Mohammad KhÃÂn, and QalÃÂteh Muhammad KhÃÂn) is a village in Shusef Rural District, Shusef District, Nehbandan County, South Khorasan Province, Iran. At the 2006 census, its population was 47, in 9 families.