The city's full official name is Stołeczne Miasto Poznań (The Capital City of Poznań), in reference to its role as a centre of political power in the early Polish state under the Piast dynasty. Poznań is known as Posen in German, and was officially called Haupt- und Residenzstadt Posen (Capital and Residence City of Poznań) between 20 August 1910 and 28 November 1918. The Latin names of the city are Posnania and Civitas Posnaniensis. Its Yiddish name is , or Poyzn.
the city's full official name is stołeczne miasto poznań (the capital city of poznań) in reference to its role as a centre of political power in the early polish state under the piast dynasty poznań is known as posen in german and was officially called haupt- und residenzstadt posen (capital and residence city of poznań) between 20 august 1910 and 28 november 1918 the latin names of the city are posnania and civitas posnaniensis its yiddish name is  or poyzn