Madam Professor Griselda Marchbanks, CDMG, APMO, fdBB, (fl. 1899 - 2012) was a witch, who served as Governor of the Wizarding Examinations Authority that ran the O.W.L., N.E.W.T. and W.O.M.B.A.T. examinations from the late 19th century to, at least, the early 21st century. Before resigning in 1995, Madam Marchbanks was one of the Wizengamot elders.