Yáng Yòngdào 楊用道 (fl. 金, mid-12th c.), Jīn-period physician and author of the third stratum of the Zhǒuhòu bèijí fāng 肘後備急方 (KR3e0010) — the Fù guǎng Zhǒuhòu fāng 附廣肘後方, which appends to Gé Hóng 葛洪’s original Jìn-period text and Táo Hóngjǐng 陶弘景’s Liáng-period supplement an additional layer of prescriptions drawn from Táng Shènwēi 唐慎微’s Zhèng lèi běncǎo 證類本草, distributed under each symptom-pattern of the Zhǒuhòu. His additions are marked in the SKQS edition with an explicit Fù fāng 附方 header. Beyond his work on this text he has no transmitted biographical record.