The Madagascar Green-pigeon (Treron australis) is a species of bird in the Columbidae family. It is found in Madagascar, Comoros, and Mayotte. The taxon griveaudi, by most authorities considered a subspecies of the Madagascar Green-pigeon, is sometimes considered a separate species, the Comoros Green-pigeon (Treron comorensis). Its natural habitats are subtropical or tropical dry forests and subtropical or tropical moist lowland forests.