Dinizia is a genus of flowering plants in the legume family, Fabaceae.

It was believed to be monotypic until 2017, when Dinizia jueirana-facao was described.

[1] Fossilised leaves and fruit discovered in North America provide evidence of a Dinizia-like ancestor that first occurred in south-eastern North America during the Eocene epoch.

The modern genus, however, is confined to South America, where it occurs in non-flooded parts of the Amazonian forests of Guyana, Suriname and seven states of North and Central-West Brazil.

[2] As of December 2019[update], Plants of the World Online has accepted two species:[1]