Karl Alfred Walther Schieck (1874-1946) was a German politician who served as the last Minister-President of Saxony during the Weimar Republic.

After studying law in Heidelberg, Munich, and Leipzig, Schieck worked from 1906 in the Saxon Ministry of Finance.

Schieck was a member of the DVP and was elected Minister-President of Saxony on 6 May 1930.

As Minister-President, he also served as the Minister of Education.

Schieck resigned on 13 May 1930, but legally held the office until his dismissal in 1933.