Dīng Yáochén 丁堯臣 (fl. mid-19th c., late Qīng), compiler of the Qíxiào jiǎnbiàn liángfāng 奇效簡便良方 (KR3ed114), a popular emergency-and-clinical formulary in 4 juǎn organised by body-region. The work circulated in the late nineteenth and early twentieth centuries; the principal extant recension is the 1924 Guāngyùtáng 光裕堂 (Jílín) Buddhist-charitable reprint, which marks itself as an edited version with animal-sacrifice recipes systematically removed. Sparse biographical information beyond the title-line.