Anna Maria Bennett (ca. 1750 – 12 February 1808) was a Welsh novelist who wrote in English. Some sources give her name as Agnes Maria Bennett. Her best-known work is the epistolary novel (1789). She worked as the housekeeper of Thomas Pye, and was also her employer's mistress. They had two illegitimate children, one of whom was the actress Harriet Pye Esten.