Margaret Stanley

Margaret Stanley may refer to:
 * Margaret Stanley (ecologist), New Zealand ecology professor
 * Margaret Stanley (virologist), British virologist and epithelial biologist
 * Margaret Beaufort, Countess of Richmond and Derby (1443–1509), married name Margaret Stanley, mother of Henry VII of England
 * Margaret Stanley, Countess of Derby (1540–1596), great-granddaughter of Henry VII of England