Regierungsbezirk Allenstein was a ''

Regierungsbezirk A ' () means "governmental district" and is a type of administrative division in Germany. Four of sixteen ' ( states of Germany) are split into '. Beneath these are rural and urban districts. Saxony has ' (directorate districts) with more res ...

'', or government region, of the

Prussian Prussia, , Old Prussian: ''Prūsa'' or ''Prūsija'' was a German state on the southeast coast of the Baltic Sea. It formed the German Empire under Prussian rule when it united the German states in 1871. It was ''de facto'' dissolved by an e ...

province of

East Prussia East Prussia ; german: Ostpreißen, label=Low Prussian; pl, Prusy Wschodnie; lt, Rytų Prūsija was a province of the Kingdom of Prussia from 1773 to 1829 and again from 1878 (with the Kingdom itself being part of the German Empire from 187 ...

from 1905 until 1945. The regional capital was

Allenstein Olsztyn ( , ; german: Allenstein ; Old Prussian: ''Alnāsteini'' * Latin: ''Allenstenium'', ''Holstin'') is a city on the Łyna River in northern Poland. It is the capital of the Warmian-Masurian Voivodeship, and is a city with county rights. ...

(present-day Olsztyn). The territory today is part of the Polish

Warmian-Masurian Voivodeship Warmian-Masurian Voivodeship or Warmia-Masuria Province or Warmia-Mazury Province (in pl, Województwo warmińsko-mazurskie, is a voivodeship (province) in northeastern Poland. Its capital and largest city is Olsztyn. The voivodeship has an are ...

History

The government region was created on 1 November 1905 as the third East Prussian ''Regierungsbezirk'' out of the southern

districts A district is a type of administrative division that, in some countries, is managed by the local government. Across the world, areas known as "districts" vary greatly in size, spanning regions or counties, several municipalities, subdivisions o ...

of the two original administrative regions

Gumbinnen Gusev (russian: Гу́сев; german: Gumbinnen; lt, Gumbinė; pl, Gąbin) is a town and the administrative center of Gusevsky District of Kaliningrad Oblast, Russia, located at the confluence of the Pissa and Krasnaya Rivers, near the border ...

and

Königsberg Königsberg (, ) was the historic Prussian city that is now Kaliningrad, Russia. Königsberg was founded in 1255 on the site of the ancient Old Prussian settlement ''Twangste'' by the Teutonic Knights during the Northern Crusades, and was named ...

, which had been established in 1815. It comprised the south of the former

Duchy of Prussia The Duchy of Prussia (german: Herzogtum Preußen, pl, Księstwo Pruskie, lt, Prūsijos kunigaikštystė) or Ducal Prussia (german: Herzogliches Preußen, link=no; pl, Prusy Książęce, link=no) was a duchy in the Prussia (region), region of P ...

; the lands of the

and Rößel districts had belonged to the

Prince-Bishopric of Warmia The Prince-Bishopric of Warmia ( pl, Biskupie Księstwo Warmińskie; german: Fürstbistum Ermland) was a semi-independent ecclesiastical state, ruled by the incumbent ordinary of the Warmia see and comprising one third of the then diocesan area ...

, annexed by Prussia in 1772. In 1920

1920 East Prussian plebiscite The East Prussian plebiscite (german: Abstimmung in Ostpreußen), also known as the Allenstein and Marienwerder plebiscite or Warmia, Masuria and Powiśle plebiscite ( pl, Plebiscyt na Warmii, Mazurach i Powiślu), was a plebiscite organised in a ...

all the Allenstein Region plus the was part of the Allenstein Plebiscite precinct, with the electorate voting for remaining with Germany by more than 97%. In 1945 following

World War II World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposin ...

, Regierungsbezirk Allenstein was dissolved when East Prussia was partitioned between the

Republic of Poland Poland, officially the Republic of Poland, is a country in Central Europe. It is divided into 16 administrative provinces called voivodeships, covering an area of . Poland has a population of over 38 million and is the fifth-most populous ...

and the

Soviet Union The Soviet Union,. officially the Union of Soviet Socialist Republics. (USSR),. was a transcontinental country that spanned much of Eurasia from 1922 to 1991. A flagship communist state, it was nominally a federal union of fifteen national ...

(Kaliningrad Oblast) according to the resolutions at the

Potsdam Conference The Potsdam Conference (german: Potsdamer Konferenz) was held at Potsdam in the Soviet occupation zone from July 17 to August 2, 1945, to allow the three leading Allies to plan the postwar peace, while avoiding the mistakes of the Paris Pe ...

Demographics

The Allenstein region was ethnically mixed in 1910, with

German German(s) may refer to: * Germany (of or related to) **Germania (historical use) * Germans, citizens of Germany, people of German ancestry, or native speakers of the German language ** For citizens of Germany, see also German nationality law **Ger ...

Polish Polish may refer to: * Anything from or related to Poland, a country in Europe * Polish language * Poles, people from Poland or of Polish descent * Polish chicken *Polish brothers (Mark Polish and Michael Polish, born 1970), American twin screenwr ...

and Masurian speakers.

Districts

As of 31 December 1937:

Notes

{{Authority control 1905 establishments in Germany States and territories disestablished in 1945 East Prussia Government regions of Prussia Olsztyn