魯武公，姬姓，名敖，西周魯國第九任君主。他為魯真公的弟弟，承襲魯真公擔任該國君主，《史記·魯世家》記載在位9年，年表記載在位10年。

魯武公九年春季，他和長子太子括，少子公子戲（也就是後來的魯懿公）前去朝見周宣王。周宣王喜歡公子戲，打算立他為魯國的太子。樊仲山父力諫周宣王，周王不聽，冊立戲為魯國太子。夏季，魯武公與兩兒子歸國，不久去世。

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Duke Wu of Lu was a ruler of the State of Lu during the Western Zhou Dynasty. His ancestral name was Ji, and given name Ao. He succeeded his brother, Duke Shen of Lu, as the ninth ruler of Lu.

In spring of the ninth year of his reign, he paid a visit to King Xuan of Zhou with his heir apparent Kuo and younger son, Xi. King Xuan appreciated Xi greatly, and despite the objections of his councillor Zhongshan Fu, he decided to intervene and appoint Xi as the heir apparent over his elder brother. In summer, the three returned to Lu, and Duke Wu died shortly after.