Zhì Yú 摯虞 (c. 250–311), zì Zhòngqià 仲洽, native of Cháng-ān Jīngzhào 京兆長安 (in modern Shǎnxī), Western-Jìn court literary-scholar, ritualist, and bibliographer. His standard biography is in Jìn shū 51 (列傳 21, Zhì Yú zhuàn). A student of Huángfǔ Mì 皇甫謐 the Dìwáng shìjì author, he rose through Tài-zǐ shě-rén 太子舍人, Wén-zhāng shì-láng 聞章侍郎, Sǎn-qí cháng-shì 散騎常侍 to Mì-shū jiān 秘書監 (Director of the Imperial Library) under Sīmǎ Zhōng (Huìdì) — the office in which his major bibliographic work was conducted.
His principal work, the Wénzhāng liúbié zhì 文章流別志 (lost, fragmentary) was the foundational Six-Dynasties classification of literary genres and the direct predecessor of Liú Xié’s Wénxīn diāolóng and Xiāo Tǒng’s Wénxuǎn. He also compiled the Sānlǐ tú 三禮圖 (the lost Sānlǐ illustration-and-vessel compendium of central importance to the early-Jìn court-ritual reconstruction), the Sān-fǔ jué-lù 三輔決錄 supplementations on Eastern-Hàn Cháng-ān worthies, the Wáng wén-zhě yí-jiè (court banquet protocol), and the present KR1d0107 Juéyí yàozhù.
He died in the Yǒngjiā disaster of 311, by some accounts of starvation in Cháng-ān. His birth date is not given in Jìn shū; the conventional estimate is c. 250, derived from his being a senior student of Huángfǔ Mì in the Tài-shǐ era (266–274). No CBDB id assigned in current dump.