Michael Hagemeister (born 9 January 1951 in Ellwangen, Baden-Württemberg) is a German historian and Slavist, an authority on The Protocols of the Elders of Zion and on Sergei Nilus. Hagemeister was employed at the universities of Marburg, Bochum, Basel, Innsbruck, Frankfurt (Oder) (Viadrina European University), and Berlin. Hagemeister served as researcher at the Department of History of the University of Basel and as temporary professor at the Department of History of Ludwig Maximilian University, Munich and at the Department of East European History at Viadrina European University, Frankfurt (Oder).