Phyllanthus raivavensis, also known by its synonym Glochidion raivavense or by the local name mahame on the island of Tubuai, is a species of plant in the family Phyllanthaceae. It is a shrub or tree endemic to the Austral Islands in French Polynesia, where it is native to the islands of Rurutu, Tubuai, and Raivavae. It grows in lowland tropical moist forest. It is threatened by predation and habitat degradation from introduced goats and by competition from invasive plants.