Zhāng Dēng 張登 (zì Dànxiān 誕先, fl. mid–late 17th century), Qīng-period physician of Chángzhōu 長洲 (Sūzhōu, Jiāngsū). Son of 張璐 Zhāng Lù (the renowned early-Qīng physician, author of the Zhāngshì yītōng 張氏醫通); brother of 張倬 Zhāng Zhuō. Author of the Shānghán shé jiàn 傷寒舌鑑 (KR3e0093 WYG / KR3eb054 hxwd, 1 juan, self-prefaced Kāngxī wùshēn 康熙戊申 = 1668 at the Juànyǒngtáng 雋永堂) — the principal Qīng tongue-diagnostic specialist treatise. The work draws on the 137-figure Guān shé xīn fǎ 觀舌心法 of Shēn Dǒuyuán 申斗垣, slimming it down to 120 figures and integrating his father Zhāng Lù’s clinical experience and his own case observations. No precise birth or death dates have been located in CBDB or external sources.