A people roaming the eastern region of modern Mongolia during the dominance of the Khitan Liao 遼 and Jurchen Jin 金 empires. Also written Wuguli 烏古里, Yujue 于厥 or 羽厥 and Yujuelü 嫗厥律, related to the people of Dilie 敵烈. It took the Khitan a long time to pacify the nomad peoples of Wugu and Dilie. In 1004 one of the imperial consorts of Emperor Liao Shengzong 遼聖宗 that should control this region, installed prefectures (zhou 州) to administer the region roamed by the Wugu and Dilie as an army command (dutong junsi 都統軍司) with the seat at Hedong 河董城 (near Bulgan/Mongolia, Kerulen River). When the Jurchen took over the north of China, they divided the Wugu tribes into different parts and resettled them to different areas, most of them to Pangge 龐葛城 (modern Qiqihar 齊齊哈爾/Heilongjiang). 烏古部 中国古代北方部落名。又称乌古里、乌骨里、乌虎里、于厥、于厥里、于骨里、于谐里、尉厥里、羽厥、妪厥律等。辽代始见于史书记载，为人数众多的部落集团，分布于今克鲁伦河下游、呼伦湖、哈拉哈河及根河、海拉尔河等地。南至洮儿河上游，北抵额尔古纳河，东领黄头室韦，西接※敌烈部。其居地水草丰美，主要以游牧为业兼营渔猎，盛产良马。常与契丹相攻。辽神册四年(919)，大部分为契丹所破，被俘获1．24万人，牛马、车乘、庐帐、器物20余万，举部降附于契丹。其后不断向辽朝进贡，被列为辽59属国之一。对辽叛服无常，辽先后置乌古部指挥使及乌古敌烈部统军司以统之。曾为辽讨伐茶扎剌等部。金天会二年(1124)，与敌烈部同降附金朝，金朝设置乌古迪烈统军司(后改为招讨司)进行统辖。13世纪初为蒙古所并。 高文德 (ed. 1995 )吉林教育出版社 《中国少数民族史大辞典》 第332頁