硬皮豆（学名：Macrotyloma uniflorum）为豆科硬皮豆属下的一个种。

Macrotyloma uniflorum (horse gram, kulthi bean, hurali, Madras gram) is one of the lesser known beans. The whole seeds of horse gram are generally utilized as cattle feed. However, it is consumed as a whole seed, as sprouts, or as whole meal in India, popular especially in southern Indian states. Medical uses of these legumes have been discussed.