Holnest is a village and civil parish in the county of Dorset in southern England. It lies within the West Dorset administrative district, in the Blackmore Vale 4 miles (6.4 km) south of Sherborne. It is a scattered village, sited on Oxford clay which is drained by a small stream called The Cam. The A352 main road passes through the village. Dorset County Council's 2013 mid-year estimate of the population of the parish is 220. In the 2011 national census the population of Holnest parish combined with the small parish of Lillington to the north was 342; figures have so far not been published for Holnest parish alone.