Melbury Osmond is a village and civil parish in the county of Dorset in southern England. It lies in the West Dorset administrative district, about 7 miles (11 km) south of the Somerset town of Yeovil. The underlying geology is Cornbrash limestone, with adjacent Oxford clay. Within the clay can be found deposits of stone which can take on a very high polish, earning them the name "Melbury marble". The village is mentioned in the Domesday Book as a possession of the Arundell family, and remained so until the 19th century. The parish church, St. Osmund's, was totally rebuilt in 1745 and restored in 1888, although it has registers dating back to 1550. In the 2011 census the parish had a population of 199.