The Coucou des Flandres, Dutch: Vlaamse Koekoek, is an endangered Belgian breed of domestic chicken.

It may have a common origin with the Malines from the area of Mechelen (French: Malines), in the province of Antwerp in Flanders, or may indeed represent the original type of that breed before it was cross-bred in the nineteenth century with various different types of imported Oriental chicken.

It may also be known as the Poulet de Dendre, for the Dender river in its area of origin.

It may perhaps represent the original type of the Malines breed before it was cross-bred in the nineteenth century with various different types of imported Oriental chicken including birds brought from Shanghai to the zoological gardens of Antwerp, as well as Brahma, Langshan and Cochin birds.

[4] The Coucou des Flandres has only one plumage variety, the cuckoo.