Cyathostegia is a genus of flowering plants in the legume family, Fabaceae.

It contains two species native to Peru and Ecuador.

[1] It is often considered to be a monotypic genus containing only Cyathostegia mathewsii.

[2][3][4] Some sources include Cyathostegia weberbaueri.

[5] Data related to Cyathostegia at Wikispecies