Posen

Posen may refer to:

Europe

 * Poznań (German: Posen), city in Poland
 * Grand Duchy of Posen, autonomous province of Prussia, 1815–1848
 * Province of Posen, Prussian province, 1848–1918
 * Posen (region), the south-western part of the Province of Posen
 * Posen-West Prussia, German province, 1922–1938
 * Reichsgau Posen, occupied in 1939, annexed and directly incorporated into the German Reich

United States

 * Posen, Illinois, a village
 * Posen, Washington County, Illinois, an unincorporated community
 * Posen, Michigan
 * Posen Township, Michigan
 * Posen Township, Minnesota

Other uses

 * Posen (surname)
 * SMS Posen, a German dreadnaught, 1908–1922