ロマン・フョードロヴィチ・フォン・ウンゲルン=シュテルンベルク(Рома́н Фёдорович фон У́нгерн-Ште́рнберг, Roman Fyodorovich von Ungern-Sternberg, 1886年1月10日 - 1921年9月15日)はロシアの軍人、貴族(男爵)で、白軍の首領の一人。
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