Yuán Shānsōng 袁山松 (also written 袁崧 Yuán Sōng, d. 401 CE), courtesy name unknown, was an Eastern Jin official, musician, and geographic writer. A native of Chénliú 陳留 (modern Henan), he served as Administrator of Yídū Commandery 宜都太守 in the Three Gorges region (western Hubei), where he composed the Yídū jì 宜都記 (KR2k0176) and the longer Yídū shānchuān jì 宜都山川記 (KR2k0197). He was celebrated in his own time for his musicianship, particularly his skill at playing xiāo 簫 (vertical flute). He was killed in 401 CE during the rebellion of Sūn Ēn 孫恩, when peasant forces attacked the Eastern Jin coastal and riverine commanderies. His geographic descriptions of the Three Gorges were extensively quoted in Lì Dàoyuán’s 酈道元 Shuǐjīng zhù 水經注, where they are cited as a primary source for the gorge topography and for the legends of Qu Yuan’s homeland at Zīguī 秭歸.