Back Regierungsbezirk Allenstein German District d'Allenstein French Distretto governativo di Allenstein Italian Alnaštyno apygarda Lithuanian Regierungsbezirk Allenstein NB Rejencja olsztyńska Polish Алленштайн (административный округ) Russian Regierungsbezirk Allenstein Swedish 阿倫施泰因行政区 Chinese
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Regierungsbezirk Allenstein was a Regierungsbezirk, or government region, of the Prussian province of East Prussia from 1905 until 1945. The regional capital was Allenstein (present-day Olsztyn). The territory today is part of the Polish Warmian-Masurian Voivodeship.