Margaret Loyd Jarman "Marney" Hagood (October 26, 1907 – August 13, 1963) was an American sociologist and demographer who "helped steer sociology away from the armchair and toward the calculator". She wrote the books Mothers of the South (1939) and Statistics for Sociologists (1941), and later became president of the Population Association of America and of the Rural Sociological Society.