Domingoa is a genus of orchids (family Orchidaceae), comprising four recognized species native to Mexico, Central America, Cuba, Hispaniola, and Mona in the Greater Antilles.
Rudolf Schlechter established the genus in 1913. Its name refers to Santo Domingo, a former name for Hispaniola. The genus name is abbreviated Dga. in cultivation.
Rudolf Schlechter described the genus, and it was published in Edwards's Botanical Register 28: misc. 23 in 1842. Domingoa is a generic name referring to Santo Domingo, an old name for Hispaniola.
, Plants of the World Online accepts the following species: