Yamada Gyōkō 山田業廣 (sobriquet Chintei 椿庭; 1808–1881), late-Edo to early-Meiji Japanese kanpō 漢方 physician, bibliophile, and the founding chairman of the Onchi-sha 溫知社 (1879), the most important Meiji-era association for the defense of classical kanpō medicine against the Meiji government’s policy of Westernisation. A senior figure in the lineage of late-Edo medical philology associated with 丹波元簡 / 丹波元堅 and the Shōkan-ron (Shānghán lùn) revivalist current. He composed prefaces and notices for a wide range of late-Edo / Bakumatsu / early-Meiji medical works, including KR3eu052 Xièyì xīnlùn (1879). Major works include the Jīngfāng biàn 經方辨, Sùwèn cìquē 素問次注 and miscellaneous case-record collections.