Fontmell Magna is a village in north Dorset, England, situated in the Blackmore Vale under Cranborne Chase on the A350 road five miles south of Shaftesbury and eight miles north of Blandford Forum. The village has a population of 671 (2001). In 1905 Sir Frederick Treves described the church as "one of the handsomest in Dorsetshire".The chalk hill just outside the village to the east, Fontmell Down, is a nature reserve. Fontmell Magna is the birthplace of the orchestral conductor Sir John Eliot Gardiner CBE FKC.