奥罗米亚州（奥罗莫语：Oromiyaa）又称北桑布鲁，是埃塞俄比亚的一个州，位于该国中南部，西邻南苏丹共和国，南部与肯尼亚接壤。面积353,632平方公里，2005年估计人口26,553,000人。首府阿的斯阿贝巴也是国家的首都，但不受本州管辖。

当地居民多为操奥罗莫语的奥罗莫人。

Oromia (spelled Oromiyaa in the Oromo language; Amharic:ኦሮምያ) is one of the nine ethnically based regional states of Ethiopia, covering 284,538 square kilometers. It is bordered by the Somali Region to the east; the Amhara Region, the Afar Region and the Benishangul-Gumuz Region to the north; South Sudan, Gambela Region, and Southern Nations, Nationalities, and Peoples' Region to the west; and Kenya to the south. The 2007 census reported Oromia's population at over 27 million, making it the largest state in population and area. It includes the former Arsi Province along with portions of the former Bale, Hararghe, Illubabor, Kaffa, Shewa, Sidamo, and Welega provinces. Its current capital is Addis Ababa (Oromo:Finfinne); other important cities and towns include Adama, Dire Dawa, Harer, Ambo, Asella, Bishoftu, Chiro, Dembidolo, Fiche, Gimbi, Robe, Goba, Dello Buna, Jimma, Metu, Negele Boran, Moyale, Nekemte, Shashamane and Waliso.