title: Old Prussia (disambiguation)
text: # Old Prussia (disambiguation)
  
  Old Prussia may refer to different entities, which were also territorially defined.
  
  In political and territorial respect it refers to:
  
  * Old Prussia
  * The Provinces of Prussia officially formed in 1815 or partially later, whose territories belonged to the Kingdom of Prussia before 1815 or before 1866, especially:
     * in a narrow sense the expression means the entirety of the:
        * Province of Brandenburg
        * Province of East Prussia
        * Province of Pomerania
        * Province of Prussia, combining East and West Prussia between 1829 and 1878
        * Province of Silesia
        * Province of West Prussia
     * in the broad sense of the expression the following provinces are also included:
        * Province of Hohenzollern
        * Rhine Province
        * Province of Westphalia
  
  In religious and territorial respect it refers to:
  
  Source: Der Große Brockhaus: Handbuch des Wissens in zwanzig Bänden: 21 vols., 15th totally revised ed., Leipzig: F. A. Brockhaus, 1928–1935, vol. 1: A–Ast, article: 'Altpreußen', p. 356. No ISBN.
  
  