The Blue vanga (Cyanolanius madagascarinus), is a species of vanga in the Vangidae family. It is in the monotypic genus Cyanolanius. It is found in Comoros, Madagascar, and Mayotte. Its natural habitats are subtropical or tropical dry forests and subtropical or tropical moist lowland forests. A taxon found on the Comoros Islands, the Comoro blue vanga is considered by most authorities to be a subspecies of the blue vanga (Cyanolanius madagascarinus comorensis), though it has occasionally been considered a separate species, Cyanolanius comorensis.