Abrus madagascariensis is a plant in the legume family Fabaceae, native to Madagascar.

Abrus madagascariensis is endemic to Madagascar, where it is confined to Antsiranana and Mahajanga provinces, including the Sambirano region, in the north and northwest of the country.

Its habitat is in dry deciduous woodland from sea level to 500 metres (1,600 ft) altitude.

Wildfires are the main threat to the species' habitat.

Eight subpopulations are present in protected areas (including Ankarafantsika National Park) where the species is conserved.