Elizabeth Cellier (commonly known as Mrs. Cellier and dubbed the "Popish Midwife"), flourished 1668–1688, London, England, was a notable Catholic midwife in seventeenth-century England. She stood trial for treason in 1680 for her alleged part in the "Meal-Tub Plot" against the future James II but was acquitted. She later became a pamphleteer and made attempts to advance the field of midwifery.