Hieronyma is a genus belonging to the plant family Phyllanthaceae first described as a genus in 1848. This family was formerly united with spurges, crotons, copperleaves, etc. (Euphorbiaceae), but have turned out to be well distinct. The genus is native to South America, Central America, southern Mexico, and the West Indies. The spelling Hieronyma has been conserved; the spellings Hieronima and Hyeronima are spelling variants of this name. Hieronyma is used locally as a foodplant, e.g. by the Nukak of Guaviare Department in Amazonian Colombia. Several species are threatened by deforestation.