Tateanthus is a monotypic genus of flowering plants belonging to the family Melastomataceae.

[1] It only contains one known species, Tateanthus duidae Gleason[1] It is native to northern Brazil and Venezuela.

[1] The genus name of Tateanthus is in honour of George Henry Hamilton Tate (1894–1953), an English-born American zoologist and botanist, who worked as a mammalogist for the American Museum of Natural History in New York City.

[2] The Latin specific epithet of duidae refers to Cerro Duida (or Mount Duida).

[3] Both the genus and the species were first described and published in Bull.