Delalande's coua (Coua delalandei), also known as snail-eating coua and Delalande's coucal, is an extinct species of non-parasitic cuckoo from Madagascar. It only was known to science as an extant bird for a very short time in the early 19th century.

There is some disagreement about its area of occurrence: Although there were claims that the bird was also found in the area of Fito and Maroantsetra as well as near Toamasina (Tamatave), i.e., the coastal areas of northern Toamasina Province, all specimens with good locality data are from the offshore island of Nosy Boraha. As the vernacular name implies, land snails were a favored food item of this species.