Altreich

Altreich or Altes Reich ("Old Empire") is a German term that may refer to:


 * A synonym for the medieval Kingdom of Germany in prior German historiography, i.e. the territory of the German stem duchy|stem duchies excluding the Saxon and Bavarian eastern marches
 * In Glossary of Nazi Germany, those territories that were part of Nazi Germany before 1938
 * A synonym for the Holy Roman Empire by modern German historical writing, in contrast to the German Reich of 1871
 * A synonym for the Austrian Empire as well as Austria-Hungary by Austrian historians
 * A sarcastic name for the Dąbrowa Basin used in Upper Silesia