Beaminster is a town and civil parish in Dorset, England, approximately 15 miles northwest of the county town Dorchester. It is sited in a bowl-shaped valley near the source of the small River Brit. The population of Beaminster parish was recorded as 3,177 in the 2021 census. Beaminster is the product of the Anglo-Saxon age, dating back to around the 7th century, when it was known as Bebingmynster, meaning the church of Bebbe although the date of origin of the town is unknown.