Guō Yìgōng 郭義恭 (life-dates, native place, and offices unknown; fl. probably 4th – early 5th century, Eastern Jìn). His single attested work is the Guǎngzhì 廣志 KR3j0199, a two-juǎn geographic-ethnographic-and-natural-products compendium whose original is lost but whose fragments are abundantly cited in Lì Dàoyuán 酈道元’s Shuǐjīng zhù 水經注 (especially j. 1 on the Indus / Xīntóu hé 新頭河), Jiǎ Sīxié 賈思勰’s Qímín yàoshù 齊民要術, Lǐ Shàn 李善’s commentary on the Wénxuǎn, Běitáng shūchāo, Yìwén lèijù, Chūxué jì, Tàipíng yùlǎn, and Lǐ Shízhēn 李時珍’s Běncǎo gāngmù 本草綱目. The presence of material on the Pyū kingdom (驃國) in present-day Burma argues for an Eastern-Jìn or post-Eastern-Jìn date of composition. The Sòng-era Suíchūtáng shūmù curiously lists the work under the name “Huáng Gōng” 黃恭 — apparently a scribal corruption. Qīng reconstructions include Wáng Mó 王謨’s in HànTáng dìlǐ shūchāo 漢唐地理書鈔, Huáng Shì 黃奭’s in his Hànxué táng cóngshū / Huángshì yìshū kǎo 黃氏逸書考, and a supplementary recension by Wáng Rénjùn 王仁俊 in the Yùhán shānfáng jíyì shū bǔbiān. Guō Yìgōng is not in CBDB.