Eriachne, commonly known as Wanderrie grass, is a genus of plants in the grass family. Most of the species are found only in Australia, with the ranges of a few extending northward into New Guinea, parts of Asia, and Micronesia. It is found in areas such as the Western Australian Mulga shrublands ecoregion. Around 48 species are recognised:

Former species

Several other species were formerly included (see Alloteropsis, Deschampsia, Digitaria and Pentameris).