荞麦叶大百合（学名：Cardiocrinum cathayanum）为百合科大百合属下的一个种。

Cardiocrinum cathayanum is a species of Chinese plants in the lily family, with large showy flowers. It is native to the Provinces of Anhui, Fujian, Henan, Hubei, Hunan, Jiangsu, Jiangxi, and Zhejiang.

Cardiocrinum cathayanum is similar to the more widespread and commonly cultivated C. giganteum, but it C. cathayanum generally has only 3-5 flowers per raceme, as compared to 10-16 flowers in C. giganteum.