Yán Zé’ān 嚴則庵 (fl. late Qīng, 19th c., 清), minor Qīng physician. Author of the Shānghán jié jué 傷寒捷訣 (KR3ef035, 1 juan) and a Yī xué qiǎn shuō 醫學淺說. His lifedates and biographical details are not preserved in the standard reference works. No CBDB record.