异花木蓝（学名：Indigofera heterantha）为豆科木蓝属下的一个种。

Indigofera heterantha (syn. Indigofera gerardiana), commonly known as Himalayan indigo, is a species of flowering plant in the family Fabaceae. It is native to the northwestern Himalayas of *****, in Asia.

It belongs to the same genus as plants formerly used to produce indigo dye.