Max Seydewitz (December 19, 1892 – February 8, 1987) was a German politician (SPD, SAPD and SED) who served as the Minister-President of Saxony from 1947 to 1952.

[2] In 1931, the left-wing of the SPD was expelled and Seydewitz alongside members such as Kurt Rosenfeld established Socialist Workers' Party of Germany, which he became the co-chair.

In 1945 he arrived at Berlin and in 1946 he became a member of the Socialist Unity Party of Germany and was for a brief period editor of the theoretical organ of SED, Einheit.

Born in Forst (Lausitz), Seydewitz was the oldest former Minister-President of Germany from November 26, 1985 to May 5, 1991 preceded by Hans Ehard and succeeded by Bruno Diekmann.

If one only counts the minister-presidents of the GDR he was oldest from August 1981 to October 8, 1991; preceded by Karl Steinhoff and succeeded by Werner Bruschke.