Winterborne Monkton is a small village and civil parish in the county of Dorset in southern England. It lies in the West Dorset administrative district, close to the A354 road between the county town Dorchester, 1.5 miles (2.4 km) to the north, and the coastal resort Weymouth, 5 miles (8.0 km) to the south. Dorset County Council's 2013 mid-year estimate of the parish population is 50.