Nils Diederich (born 6 May 1934) is a German Social Democratic Party politician and political scientist. He served as a member of the German Bundestag from 1976 to 1987 and 1989 to 1994.[1] He is professor emeritus for political science, focusing on political sociology, at the Free University of Berlin.[2] [3] He has a diplom in economics and joined the SPD in 1952. In the Bundestag, he was a member of the finance and budget committees.Diederich is the grandfather of musical artist Ski Aggu.