Acunaeanthus is a monotypic genus of flowering plants in the family of Rubiaceae.

The genus contains only one known species; Acunaeanthus tinifolius, which is endemic to Cuba.

[1] The genus name of Acunaeanthus is in honour of Julián Acuña Galé (1900–1973), a Cuban botanist who served as director of the Agricultural Experimental Station in Santiago de Las Vegas.

[2] The Latin specific epithet of tinifolius with leaves like Laurustinus (Viburnum tinus).

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