Mohammadabad-e Kharkash (Persian: محمدابادخركش‎, also Romanized as Moḩammadābād-e Kharkash; also known as Hemmatābād, Moḩammadābād, and Muhammadābād) is a village in Momenabad Rural District, in the Central District of Sarbisheh County, South Khorasan Province, Iran.