Margarethe Zinndorf (17 September 1855 –25 May 1963) was a German centenarian, recognized as the second-oldest living person in the world between 21 April 1963 and her death at age 107 in Kilianstätten, Hesse. At one point, she was regarded as the oldest person in the world during that time, but on 27 April 2007 it emerged that the 1965 UK Guinness Book had listed Elizabeth Kensley as the world's oldest person, thus superseding Zinndorf. She remains, however, a previous holder of the title of Germany's oldest person.