肖鸢尾（学名：Moraea iridioides）为鸢尾科肖鸢尾属下的一个种。

Dietes iridioides (African iris, Cape iris, fortnight lily, Morea iris, wild iris, dietes) is an ornamental plant in the Iridaceae family.

D. iridioides has white flowers marked with yellow and violet, with six free tepals that are not joined into a tube at their bases. These flowers last only one day. The seedpods of the plant often bend the stalks down to the ground where they have a better chance of propagating a new generation of plants.