Horst Sindermann was a Communist German politician and one of the leaders of East Germany. He became Chairman of the Council of Ministers in 1973, but in 1976 he became President of the Volkskammer, the only member of the Socialist Unity Party of Germany to hold the post.

These are lists of political office-holders in East Germany. The political leadership of East Germany was distributed between several offices. However, until the Volkskammer removed a section in the GDR's constitution guaranteeing their monopoly on political power on 1 December 1989, the Socialist Unity Party of Germany (SED) held ultimate power and authority over state and government. Thus, the head of the SED's Politburo of the Central Committee was the de facto leader of the country.