Margaret Fownes-Luttrell, English painter (d. 1766)

Margaret Fownes-Luttrell (7 February 1726 – 13 August 1766) was a British heiress, the wife of Henry Fownes Luttrell. She was the heiress of Dunster Castle, under the stipulation in her father's will that her husband should take the additional surname of Luttrell. Four portraits of her exist in Dunster castle and a fifth at Bathealton Court.