Tarrant Monkton is a village and civil parish in north Dorset, England, situated in the Tarrant Valley about 4 miles (6.4 km) ENE of Blandford Forum. Within the parish boundary, sited 1.5 miles over hills to the west, lies the major part of Blandford Camp army base. In the 2011 census the parish—including the army base— had a population of 1,986. The village is centred on the All Saints Parish Church, opposite which is the Langton Arms, a public house and restaurant.