Gāo Yǔn 高允 (390–487 CE), styled Bógōng 伯恭, was a scholar-official and poet of the Northern Wèi 北魏 dynasty, born in Bóhǎi Xiū 渤海脩 (modern Héběi). He is remarkable both for his extraordinary longevity — he died at nearly one hundred years of age — and for his sustained moral and literary influence at the Northern Wèi court. After initial service under the Northern Liáng, he joined the Northern Wèi under Emperor Tàiwǔ 太武帝 and rose to become 中書監 (Director of the Imperial Secretariat), a post he held for decades across the reigns of Emperors Tàiwǔ, Wénchéng 文成帝, and Xiànwén 獻文帝, remaining an influential presence into the reign of Emperor Xiàowén 孝文帝. He was celebrated for the courage of his remonstrance, opposing imperial excess and cruelty on multiple occasions; his surviving memorials and letters document this tradition of loyal remonstrance. He engaged in literary correspondence with the poet Zōng Qīn 宗欽, and his 〈答宗欽十三章〉 (Thirteen Poems in Reply to Zōng Qīn), preserved in Wèishū 魏書 48, is the most substantial body of verse attributed to a Northern Wèi official. His biography is recorded in Wèishū 魏書 48 and Běishǐ 北史 31. His reconstructed works are preserved in the Kanripo corpus as KR4b0072.