The melodious warbler (Hippolais polyglotta) is an Old World warbler in the tree warbler genus Hippolais. It breeds in southwest Europe and northwest Africa. It is migratory, wintering in sub-Saharan Africa. This small passerine bird is a species found in open woodland with bushes. Three to five eggs are laid in a nest in a tree or a bush. This is a common bird in many parts of its wide range and the International Union for Conservation of Nature has rated its conservation status as being of "least concern".