Wáng Cài 王蔡 (fl. Zhèngdé era, 1510s, Mǐnzhōng 閩中 [Fújiàn]), early-Míng inner-alchemical / dǎoyǐn writer. The sole transmitted attribution is to the Xiūzhēn mìyào 修真秘要 (KR3eo023), self-prefaced in Zhèngdé yǐhài (= Zhèngdé 10 = 1515; the xù signature shows a calendrical inconsistency, giving “Zhèngdé 8” with cyclical “yǐhài”). Distinctive for his integrated Confucian-Daoist framing of cultivation, with Mèngzǐ’s Hàoránzhīqì and Kǒngzǐ’s biàntōng mò dà hū sìshí presented as the principal authorities for yǎngqì practice. No biographical data available beyond the xù. No CBDB record (CBDB 640151 is Wáng Càichū 王蔡初, a different person).