Dōngnóng zhǔrén 東農主人 (“the Master of the Eastern-Agriculture Studio”) is the studio-name of an unidentified Qīng-period editor of the Yuáncù yàolùn 原瘄要論 (KR3ej050) — the consolidated paediatric cùzhèng manuscript of the Yínxiàn region Yuán, Shěn, and Yú family medical lineages. The preface is dated chángzhì jié hòu sān rì 長至節後三日 (three days after the summer solstice) without an absolute year. The personal name has not been identified.