Gao Anagong (高阿那肱) (died November 18, 580) was an official of the Chinese dynasty Northern Qi. He was a close associate of the emperor Gao Wei, and late in Gao Wei's reign dominated the political scene along with Mu Tipo and Han Zhangluan. While probably not as corrupt as Mu and Mu's mother and Gao Wei's wet nurse Lu Lingxuan, he was known for incompetence. In 577, with Northern Qi under major attack by rival Northern Zhou, after Gao Wei fled the capital Yecheng, Gao Anagong betrayed him and gave him false information, allowing Northern Zhou forces to capture him. In 580, with Northern Zhou in civil war between the regent Yang Jian and the general Yuchi Jiong, Gao Anagong was on Yuchi's side and, after Yuchi's defeat, was executed.
Gao Anagong was from Shanwu Commandery (善無, roughly modern Xinzhou, Shanxi). His father Gao Shigui (高市貴) was a follower of Gao Huan, the paramount general of Eastern Wei, the predecessor state of Northern Qi, and whose sons eventually became emperors of Northern Qi. Gao Anagong served in the military and was known for his abilities in archery and horseriding. He was also known for his ability to flatter others, and he became a favorite of both Gao Wei's father Emperor Wucheng and the powerful official He Shikai. After Gao Wei became emperor in 565, Gao Anagong continued to be promoted, eventually to the title of Prince of Huaiyin. He became particularly powerful after the death of He Shikai in 571 and the general Hulü Guang in 572, becoming known, along with Mu and Han as the "Three Nobles."
In winter 577, Emperor Wu of Northern Zhou launched a major attack on Northern Qi's important city Pingyang (平陽, in modern Linfen, Shanxi), but despite the urgency of the matter, Gao Anagong delayed notification to Gao Wei, who was then hunting with his favorite concubine Consort Feng Xiaolian at Qilian Lake (祁連池, in modern Xinzhou). He did not inform Gao Wei of the attack until Pingyang fell. During the subsequent struggle for Pingyang, Gao Anagong began secret communications with Northern Zhou forces, and the communications intensified after Gao Wei abandoned the secondary capital Jinyang (晉陽, in modern Taiyuan, Shanxi) around the new year 578, fleeing back to Yecheng.