Voanioala gerardii, commonly known as the forest coconut, is a species of flowering plant in the family Arecaceae.
It is a relative of the coconut, and is generally regarded as monotypic within the genus Voanioala. However, a team of geneticists headed by Bee F. Gunn found sufficient genetic variation within Voanioala to constitute at least two and possibly four cryptospecies.
Voanioala is endemic to Madagascar, and is threatened by habitat loss. Voanioala is harvested for its edible seeds and palm heart. It is estimated that there are fewer than fifteen mature trees remaining.