大叶假百合（学名：Notholirion macrophyllum）为百合科假百合属下的一个种。

Notholirion macrophyllum is a species of the genus Notholorion, in the Liliaceae (lily) family. They are bulbous flowering plants originating in Asia. N. macrophyllum is the smallest species in the family, with a height of 20–25 cm. The leaves are basal, 30–40 cm long and about 2 cm wide. from June to August N. macrophyllum produces a racemose inflorescence bearing 2–4 (occasionally 6) pale violet to purple or red, bell-shaped, hermaphrodite, flowers with dark purple flecks in the throat, about 5 cm in length. After flowering the plant produces a capsular fruit.